the journal of october 15, 1990 biological chemistry · virginia l. seery and harold m. farrell,...

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Vol. 265, No. 29 The Journal of October 15, 1990 Biological Chemistry Copyright 0 1990 by the American Society for Biochemistry and Molecular Biology, Inc. 428 East Preston St., Baltimore, MD 21202 U.S.A. 17381 17385 17389 17393 17397 17401 17405 17409 17413 17416 17420 17424 CONTENTS* MINIREVIEW Platelet-activating factor. Stephen M. Prescott, Guy A. Zimmerman, and Thomas M. McIntyre COMMUNICATIONS Differential effects of brefeldin A on sialylation of N- and O-linked oligosaccharides in low density lipoprotein receptor and epidermal growth factor receptor. Satoshi Shite, Tadashi Seguchi, Hiromoto Mizoguchi, Mayumi Ono, and Michihiko Kuwano Multiple preproenkephalin transcriptional start sites are induced by stress and cholinergic path- ways. Gary Weisinger, Joseph D. DeCristofaro, and Edmund F. LaGamma A novel functional domain of an a-like DNA polym- erase. The binding site on the herpes simplex virus polymerase for the viral UL42 protein. Paul Digard and Donald M. Coen An intragenic region downstream from the dihydro- folate reductase promoter is required for replica- tion-dependent expression. Edward E. Schmidt, Rebecca A. Owen, and Gary F. Merrill Sequence identity between the az-macroglobulin receptor and low density lipoprotein receptor-re- lated protein suggests that this molecule is a multi- functional receptor. Dudley K. Strickland, James D. Ashcom, Suzanne Williams, Wilson H. Burgess, Mary Migliorini, and W. Scott Argraves The epitope for monoclonal antibody A20 (amino acids 870-890) is located on the luminal surface of the Ca’+-ATPase of sarcoplasmic reticulum. David M. Clarke, Tip W. Loo, and David H. MacLennan Transcriptional activator LEU3 of yeast. Mapping of the transcriptional activation function and sig- nificance of activation domain tryptophans. Kemin Zhou and Gunter B. Kohlhaw Preliminary crystallographic data for the thiamin diphosphate-dependent enzyme pyruvate decarbox- ylase from brewers’ yeast. Fred Dyda, William Furey, Subramanyam Swamina- than, Martir Sax, Bruce Farrenkopf, and Frank Jordan Identification of soluble interleukin-1 binding pro- tein in cell-free supernatants. Evidence for soluble interleukin- 1 receptor. Judith G. Giri, Robert C. Newton, and Richard Horak Binding of annexin V/placental anticoagulant pro- tein I to platelets. Evidence for phosphatidylserine exposure in the procoagulant response of activated platelets. Perumal Thiagarajan and Jonathan F. Tait Identification of sorbitol 3-phosphate and fructose 3-phosphate in normal and diabetic human eryth- rocytes. Aqqaluk Petersen: Benjamin S. Szwergold, Francis Kappler, Martin Wemgarten, and Truman R. Brown 17428 17432 17436 17441 17446 17451 17456 17463 17468 17474 17478 17486 17493 An mRNA from human brain encodes an isoform of the B subunit of the vacuolar H+-ATPase. Paul Bernasconi, Thomas Rausch, Ilona Struve, Louis Morgan, and Lincoln Taiz Endothelin, a potent peptide agonist in the liver. Chandrashekhar R. Gandhi, Katherine Stephenson, and Merle S. Olson ARTICLES Multiple roles of divalent cation in the terminal deoxynucleotidyltransferase reaction. Lucy M. S. Chang and F. J. Bollum Recognition of the tRNA-like structure in tobacco mosaic viral RNA by ATP/CTP:tRNA nucleotidyl- transferases from Escherichia coli and Saccharo- myces cerevisiae. Lisa A. Hegg, Maybelle Kou, and David L. Thurlow Resonance-enhanced Raman scattering from the molybdenum center of xanthine oxidase. W. Anthony Oertling and Russ Hille Molecular cloning of wheat dihydrodipicolinate synthase. Takashi Kaneko, Takashi Hashimoto, Rosarin Kumpaisal, and Yasuyuki Yamada Distinctive regulation of the functional linkage be- tween the human cation-independent mannose 6- phosphate receptor and GTP-binding proteins by insulin-like growth factor II and mannose 6-phos- phate. Yoshitake Murayama, Takashi Okamoto, Etsuro Ogata, Tomiko Asano, Taroh Iiri, Toshiaki Katada! Michio Ut, Jeffrey H. Grubb, William S. Sly, and Ikuo Nwhimoto cDNA sequence, in vitro synthesis, and intramito- chondrial lipoylation of H-protein of the glycine cleavage system. Kazuko Fujiwara, Kazuko Okamura-Ikeda, and Yutaro Motokawa Vasopressin-induced polyphosphoinositide and phosphatidylcholine degradation in fibroblast. Temporal relationship for formation of phospholi- pase C and phospholipase D hydrolysis products. Chunfa Huang and Myles C. Cabot Sodium butyrate selectively alters thyroid hormone receptor gene expression in GH3 cells. Mitchell A. Lazar Calcium mediates the interconversion between two states of the liver inositol 1,4,6-trisphosphate receptor. France Pietri, Mauricette Hilly, and Jean-Pierre Mauger Receptor-operated calcium influx in rat hepato- cstes. Identification and characterization usine manganese. George E. N. Kass, Juan Llopis, Sek C. Chow, Steven K. Duddy, and Sten Orrenius Construction and properties of active chimeric en- zymes between human aldolases A and B. Analysis of molecular regions which determine isozyme-spe- cific functions. Yoshihiko Kitajima, Yozo Takasaki, Isamu Takahashi, and Katsuji Hori * The CONTENTS arranged by Subject Categories will be found immediately following these CONTENTS. Full Instructions to Authors will be found in (1990) J. Biol. Chem. 265,595-605, and reprints may be obtained from the editorial office. ii

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Vol. 265, No. 29 The Journal of October 15, 1990

Biological Chemistry Copyright 0 1990 by the American Society for Biochemistry and Molecular Biology, Inc.

428 East Preston St., Baltimore, MD 21202 U.S.A.

17381

17385

17389

17393

17397

17401

17405

17409

17413

17416

17420

17424

CONTENTS*

MINIREVIEW

Platelet-activating factor. Stephen M. Prescott, Guy A. Zimmerman, and Thomas

M. McIntyre

COMMUNICATIONS

Differential effects of brefeldin A on sialylation of N- and O-linked oligosaccharides in low density lipoprotein receptor and epidermal growth factor receptor.

Satoshi Shite, Tadashi Seguchi, Hiromoto Mizoguchi, Mayumi Ono, and Michihiko Kuwano

Multiple preproenkephalin transcriptional start sites are induced by stress and cholinergic path- ways.

Gary Weisinger, Joseph D. DeCristofaro, and Edmund F. LaGamma

A novel functional domain of an a-like DNA polym- erase. The binding site on the herpes simplex virus polymerase for the viral UL42 protein.

Paul Digard and Donald M. Coen

An intragenic region downstream from the dihydro- folate reductase promoter is required for replica- tion-dependent expression.

Edward E. Schmidt, Rebecca A. Owen, and Gary F. Merrill

Sequence identity between the az-macroglobulin receptor and low density lipoprotein receptor-re- lated protein suggests that this molecule is a multi- functional receptor.

Dudley K. Strickland, James D. Ashcom, Suzanne Williams, Wilson H. Burgess, Mary Migliorini, and W. Scott Argraves

The epitope for monoclonal antibody A20 (amino acids 870-890) is located on the luminal surface of the Ca’+-ATPase of sarcoplasmic reticulum.

David M. Clarke, Tip W. Loo, and David H. MacLennan

Transcriptional activator LEU3 of yeast. Mapping of the transcriptional activation function and sig- nificance of activation domain tryptophans.

Kemin Zhou and Gunter B. Kohlhaw

Preliminary crystallographic data for the thiamin diphosphate-dependent enzyme pyruvate decarbox- ylase from brewers’ yeast.

Fred Dyda, William Furey, Subramanyam Swamina- than, Martir Sax, Bruce Farrenkopf, and Frank Jordan

Identification of soluble interleukin-1 binding pro- tein in cell-free supernatants. Evidence for soluble interleukin- 1 receptor.

Judith G. Giri, Robert C. Newton, and Richard Horak

Binding of annexin V/placental anticoagulant pro- tein I to platelets. Evidence for phosphatidylserine exposure in the procoagulant response of activated platelets.

Perumal Thiagarajan and Jonathan F. Tait

Identification of sorbitol 3-phosphate and fructose 3-phosphate in normal and diabetic human eryth- rocytes.

Aqqaluk Petersen: Benjamin S. Szwergold, Francis Kappler, Martin Wemgarten, and Truman R. Brown

17428

17432

17436

17441

17446

17451

17456

17463

17468

17474

17478

17486

17493

An mRNA from human brain encodes an isoform of the B subunit of the vacuolar H+-ATPase.

Paul Bernasconi, Thomas Rausch, Ilona Struve, Louis Morgan, and Lincoln Taiz

Endothelin, a potent peptide agonist in the liver. Chandrashekhar R. Gandhi, Katherine Stephenson, and

Merle S. Olson

ARTICLES

Multiple roles of divalent cation in the terminal deoxynucleotidyltransferase reaction.

Lucy M. S. Chang and F. J. Bollum

Recognition of the tRNA-like structure in tobacco mosaic viral RNA by ATP/CTP:tRNA nucleotidyl- transferases from Escherichia coli and Saccharo- myces cerevisiae.

Lisa A. Hegg, Maybelle Kou, and David L. Thurlow

Resonance-enhanced Raman scattering from the molybdenum center of xanthine oxidase.

W. Anthony Oertling and Russ Hille

Molecular cloning of wheat dihydrodipicolinate synthase.

Takashi Kaneko, Takashi Hashimoto, Rosarin Kumpaisal, and Yasuyuki Yamada

Distinctive regulation of the functional linkage be- tween the human cation-independent mannose 6- phosphate receptor and GTP-binding proteins by insulin-like growth factor II and mannose 6-phos- phate.

Yoshitake Murayama, Takashi Okamoto, Etsuro Ogata, Tomiko Asano, Taroh Iiri, Toshiaki Katada! Michio Ut, Jeffrey H. Grubb, William S. Sly, and Ikuo Nwhimoto

cDNA sequence, in vitro synthesis, and intramito- chondrial lipoylation of H-protein of the glycine cleavage system.

Kazuko Fujiwara, Kazuko Okamura-Ikeda, and Yutaro Motokawa

Vasopressin-induced polyphosphoinositide and phosphatidylcholine degradation in fibroblast. Temporal relationship for formation of phospholi- pase C and phospholipase D hydrolysis products.

Chunfa Huang and Myles C. Cabot

Sodium butyrate selectively alters thyroid hormone receptor gene expression in GH3 cells.

Mitchell A. Lazar

Calcium mediates the interconversion between two states of the liver inositol 1,4,6-trisphosphate receptor.

France Pietri, Mauricette Hilly, and Jean-Pierre Mauger

Receptor-operated calcium influx in rat hepato- cstes. Identification and characterization usine manganese.

George E. N. Kass, Juan Llopis, Sek C. Chow, Steven K. Duddy, and Sten Orrenius

Construction and properties of active chimeric en- zymes between human aldolases A and B. Analysis of molecular regions which determine isozyme-spe- cific functions.

Yoshihiko Kitajima, Yozo Takasaki, Isamu Takahashi, and Katsuji Hori

* The CONTENTS arranged by Subject Categories will be found immediately following these CONTENTS. Full Instructions to Authors will be found in (1990) J. Biol. Chem. 265,595-605, and reprints may be obtained from the editorial office.

ii

111

17499 Purification and characterization of a 19-kilodalton intracellular protein. An activation-regulated pu- tative protein kinase C substrate of T lymphocytes.

Martin Gullberg, Kristina Noreus, Goran Brattsand, Bengt Friedrich, and Victoria Shingler

17506 Plasma cell membrane glycoprotein PC-l. cDNA clonine of the human molecule. amino acid se- quence, and chromosomal location.

Michael F. Buckley, Katherine A. Loveland, William J. McKinstry, 0. Margaret Garson, and James W. Goding

17512 A neutral phospholipase D activity from rat brain synaptic plasma membranes. Identification and par- tial characterization.

Vered Chalifa, Heidi Mohn, and Mordechai Liscovitch

17520 Assembly of functional rhodopsin requires a disul- fide bond between cysteine residues 110 and 187.

Sadashiva S. Karnik and H. Gobind Khorana

17525 Oxygen and temperature dependence of stimulated insulin secretion in isolated rat islets of Langerhans.

Mitsuaki Ohta, David Nelson, June Nelson, Martin D. Meglasson, and Maria Ereciriska

17533 Hydroxyl radical is not a product of the reaction of xanthine oxidase and xanthine. The confounding problem of adventitious iron bound to xanthine ox- idase.

Bradley E. Britigan, Sovitj Pou, Gerald M. Rosen, Diane M. Lilleg, and Garry R. Buettner

17539 Analysis of the generation and inhibition of factor Xa. Area under generation curves is independent of enzvme generation rate.

Jolyon 3esty

17545 Sulfate transport by rat liver lysosomes. Adam J. Jonas and Helgi Jobe

17550 Diradylglycerol synergizes with an anionic amphi- phile to activate superoxide generation and phos- phorylation of p47,,,,, in a cell-free system from human neutrophils.

David N. Burnham, David J. Uhlinger. and J. David Lambeth

17560 (~5, a3, and Non-a3. Three clustered avian genes encoding neuronal nicotinic acetylcholine receptor- related subunits.

Sabine Couturier, Linda Erkman, Soledad Valera, Duri Rungger, Sonia Bertrand, Jim Boulter, Marc Balliuet, and Daniel Bertrand

17568 Location of helical regions in tetrapyrrole-contain- ing proteins by a helical hydrophobic moment analy- sis. Application to phytochrome.

William Parker and Pill-Soon Song

17576 Regulation of platelet-activating factor receptor and platelet-activating factor receptor-mediated bi- ological response by CAMP in rat Kupffer cells.

Wei Chao, Heling Liu, Weiguo Zhou, Donald J. Hana- han, and Merle S. Olson

17584 Identification of the ATP-binding domain of vacci- nia virus thymidine kinase.

Margaret E. Black and Dennis E. Hruby

17593 Characterization of the equilibrium binding of Xen- opus transcription factor IIIA to the 5 S RNA gene.

Paul J. Romaniuk

17601 Different pathways of [3H]inositol phosphate for- mation mediated by al.- and cr,,,-adrenergic recep- tors.

Karen M. Wilson and Kenneth P. Minneman

17607 Phosphorylation of smooth muscle caldesmon by calmodulin-dependent protein kinase II. Identifica- tion of the phosphorylation sites.

Mitsuo Ikebe and Sheila Reardon

17613 Agonist stimulation of Na+/K+/Cl- cotransport in rat glomerular mesangial cells. Evidence for protein kinase C-dependent and Ca’+/calmodulin-dependent pathways.

Toshio Homma, Kevin D. Burns, and Raymond C. Harris

17621 Regulation of the exnression of Galal-BGalBl- 4GicNAc glycosphingolipids in kidney.

Stephen P. Hendricks, Pingren He, Cheryl L. M. Stults, and Bruce A. Macher

17627 RNA primary sequence or secondary structure in the translational initiation region controls expres- sion of two variant interferon-j3 genes in Esche- richia coli.

Gerhard Gross, Christian Mielke, Znge Hollatz, Helmut Blocker, and Ronald Frank

17637 Stopped flow and steady state kinetic studies of the effects of metabolites on the soluble form of NADP+:isocitrate dehydrogenase.

Harold M. Farrell, Jr., Jude T. Deeney, Erich K. Hild, and Thomas F. Kumosinski

17644 Spectroscopic evidence for ligand-induced confor- mational change in NADP+:isocitrate dehydrogen- ase.

Virginia L. Seery and Harold M. Farrell, Jr.

17649 The crystal structure of a lysine 49 phospholipase A2 from the venom of the cottonmouth snake at 2.0- A resolution.

Debra R. Holland, Laura L. Clancy, Steven W. Much- more, Timothy J. Ryde, Howard M. Einspahr, Barry C. Finzel, Robert L. Heinrikson, and Keith D. Watenpaugh

17657 Agents that raise CAMP in human T lymphocytes release an intracellular pool of calcium in the ab- sence of inositol phosphate production.

Linda L. Kelley, Peter F. Blackmore, Stanley E. Graber, and Stanford J. Stewart

17665 Variation of cofactor levels in Escherichiu coli. Se- quence analysis and expression of the pnc@ gene encoding nicotinic acid phosphoribosyltransferase.

Marcel G. Wubbolts, Peter Terpstra, Jan B. van Beilen, Jaap Kingma, H. A. Rene Meesters, and Bernard Witholt

17673 Osmotic control of proU transcription is mediated through direct action of aotassium glutamate on the transcription complex. -

William S. Prince and Merna R. Villarejo

17680 A tetrameric iron superoxide dismutase from the eucaryote Tetrahymena pyriformis.

Donutella Barra, M. Eugenia Schinina, Francesco Bossa, Krystyna Puget, Patrice Durosay, Annie Guissani, and A. Michael Michelson

17688 In situ cross-linking of human erythrocyte band 3 by bis(sulfosuccinimidyllsuberate. Evidence for li- gand modulation of two alternate quaternary forms: covalent band 3 dimers and noncovalent tetramers formed by the association of two covalent dimers.

James M. Salhany, Renee L. Sloan, and Karen A. Cordes

17694 Purification and characterization of functional re- combinant a-amidating enzyme secreted from mam- malian cells.

Gary A. Beaudry, Nozer M. Mehta, Martha L. Ray, and Arthur H. Bertelsen

17700 Stimulus-responsive and rapid formation of inositol pentakisphosphate in cultured adrenal chromaffin cells.

Nobuyuki Sasakawa, Toshio Nakaki, and Ryuichi Kato

17706 Carbohydrate-binding protein 35. Isoelectric points of the polypeptide and a phosphorylated derivative.

Elizabeth A. Cowles, Neera Agrwal, Richard L. Anderson, and John L. Wang

17713 Identification of a critical cssteine in EcoRI DNA methyltransferase by mass spectrometry.

Elizabeth A. Everett, Arnold M. Falick, and Norbert 0. Reich

17720 Thylakoid membrane protein topography. Location of the termini of the chloroplast cytochrome bs on the stromal side of the membrane.

Andrzej Szczepaniak and William A. Cramer

17727 Localization of Jysyl-y-glutamyl cross-links in five human az-macroglobulin-proteinase complexes. Na- ture of the high molecular weight cross-linked prod- ucts.

Lars Sottrup-Jensen, H. Frede Hansen, Helge Skak Ped- ersen, and Lene Kristensen

17738 Purification and characterization of glycosyl-phos- phatidylinositol-specific phospholipase D.

Kuo-Sen Huang, Shirley Li, Wen-Jian C. Fung, Jeffrey D. Hulmes, Linda Reik, Yu-Ching E. Pan, and Martin G. Low

17746 Characterization of recombinant tick anticoagulant peptide. A highly selective inhibitor of blood coag- ulation factor Xa.

Michael P. Neeper, Lloyd Wanman, Donna E. Smith, Cheryl A. Schulman, Mohinder Sardana, Ronald W. Ellis, Linda W. Schaffer, Peter K. S. Siegl, and George P. Vlasuk

17753 Mouse satellite DNA is transcribed in senescent car- diac muscle.

James W. Gaubatz and Richard G. Cutler

17759 The subunit Sl is important for pertussis toxin se- cretion.

Mariagrazia Pizza, Massimo Bugnoli, Roberto Manetti, Antonello Couacci, and Rino Rappuoli

17764 Biosynthesis and processing of renal mitochondrial glutaminase in cultured proximal tubular epithelial cells and in isolated mitochondria.

Shrima Y. Perera, Tai C. Chen, and Norman P. Curthoys

17771 Retinoic acid modulation of transmembrane signal- ing. Analysis in F9 teratocarcinoma cells.

Patricia A. Galuin-Parton, David C. Watkins, and Craig C. Malbon

17780 Deficient expression of the gene coding for decorin in a lethal form of Marfan syndrome.

Leena Pulkkinen, Katariina Kainulainen, Tom Krusius, Pekka Makinen, Jens Schollin, Karl-Henrik Gustavsson, and Leena Peltonen

17786 cDNA cloning of a dihydropyridine-sensitive cal- cium channel from rat aorta. Evidence for the ex- istence of alternatively spliced forms.

Walter J. Koch, Patrick T. Ellinor, and Arnold Schwartz

17792 Molecular basis of tyrosinase-negative oculocuta- neous albinism. A single base mutation in the tyro- sinase gene causing arginine to glutamine substitu- tion at position 59.

Atsushi Takeda, Yasushi Tomita, Jun Matsunaga, Hach- iro Tagami, and Shigeki Shibahara

17798 Structural and functional analysis of two Campy- lobacter jejuni flagellin genes.

_

Piet J. M. Nuiiten. Fons J. A. M. van Asten. Wim Gaastra, and Bernard A. M. van der Zeijst

17805 Accumulation of apolipoproteins in the regenerat- ina and remvelinatine mammalian DeriDherd nerve. Identification of-apolipoprotein D, apolipo- protein A-IV, apolipoprotein E, and apolipoprotein A-I.

Janet K. Boyles, Lucia M. Notterpek, and Linda J. Anderson

17816 RNA polymerase II subunit RPBlO is essential for yeast cell viability.

Nancy A. Woychik and Richard A. Young

17820 An insulin-like growth factor I/insulin hybrid ex- hibiting high potency for interaction with the type I insulin-like growth factor and insulin receptors of placental plasma membranes.

Jose F. Cara, Raghavendra G. Mirmira, Satoe H. Naka- gawa, and Howard S. Tager

17826 Specific DNA cleavage and binding by vaccinia vi- rus DNA topoisomerase I.

Stewart Shuman and John Prescott

17837 Binding of human syndecan to extracellular matrix proteins.

Klaus Elenius, Markku Salmivirta, Pirjo Inki, Markku Mali, and Markku Jalkanen

17844 Molecular cloning of an amino acid-regulated mRNA (amino acid starvation-induced) in rat hep- atoma cells.

Neil F. Shay, Harry S. Nick, and Michael 5’. Kilberg

17849 Transcriptional regulation of the liver /3-galactoside a2,6+ialyltransferase by glucocorticoids.

XueCheng Wang, Terry J. Smith, and Joseph T. Y. Lau

17854 von Willebrand factor is a cofactor for thrombin- catalyzed cleavage of the factor VIII light chain.

David C. Hill-Eubanks and Pete Lollar

17859 Free thiols of platelet thrombospondin. Evidence for disulfide isomerization.

Mark V. Speziale and Thomas C. Detwiler

17868 Ligand-induced phosphorylation of the human in- terferon-y receptor. Dependence on the presence of a functionally active receptor.

Gurjit K. Khurana Hershey, David W. McCourt, and Robert D. Schreiber

17876 The 204-kDa smooth muscle myosin heavy chain is phosphorylated in intact cells by casein kinase II on a serine near the carboxyl terminus.

Christine A. Kelley and Robert S. Adelstein

17883 Isoprenoid modification of G25K (G,), a low molec- ular mass GTP-binding protein distinct from ~21’“.

William A. Maltese and Kathleen M. Sheridan

17891 Formation of high molecular weight dermatan sul- fate proteoglycan in bovine aortic endothelial cell cultures. Evidence for transglutaminase-catalyzed cross-linking to fibronectin.

Michael G. Kinsella and Thomas N. Wight

17899 Selenium and amino acid composition of selenopro- tein P, the major selenoprotein in rat serum.

Robert Read, Terri Bellew, Jian-Guo Yang, Kristina E. Hill, Ivan S. Palmer, and Raymond F. Burk

17906 Opsin of Calliphora peripheral photoreceptors Rl- 6. Homology with DrosoDhila Rhl and posttrans- lational processing. -

Armin Huber, Dean P. Smith, Charles S. Zuker, and Reinhard Paulsen

17911 Purification and characterization of proximal se- quence element-binding protein 1, a transcription activating protein related to Ku and TREF that - - binds the proximal sequence element of the human Ul uromoter.

Mhrk W. Knuth, Samuel I. Gunderson, Nancy E. Thompson, Lee A. Strasheim, and Richard R. Burgess

17921 Two mutations produce intron insertion in mRNA and elongated o-subunit of human fi-hexosamini- dase.

Bonnie Dlott, Alessandra d’Az.zo, Doris V. K. Quon, and Elizabeth F. Neufeld

17928 The cl repressor inactivator protein coi of bacteri- ophage PI. Cloning and expression of coi and its interference with cl repressor function.

Thorsten Heinzel, Mathias Velleman, and Heinz Schuster

17935 Low K+ increases Na,K-ATPase abundance in LLC- PK,/CL cells bs differentialls increasing B. and not a, subunit mRNA.

-. Leslie Lescale-Matys, Charles B. Hensley, Romana

Crnkovic-Markovic, Daun S. Putnam, and Alicia A. McDonough

17941 Feedback regulation of phospholipase C-/3 by pro- tein kinase C.

Sung Ho Ryu, Uh-Hyun Kim, Matthew I. Wahl, Alice gooB;h~; Graham Carpenter, KuoPtng Huang, and Sue

17946 Purification and expression of gCap39. An intra- cellular and secreted Ca’+-dependent actin-binding protein enriched in mononuclear phagocytes.

Paul A. Johnston, Fu-Xin Yu, Gary A. Reynolds, Helen L. Yin, Carolyn R. Moomaw, Clive A. Slaughter, and Thomas C. Sudhof

17953 Entrapment of purified a-hemoglobin chains in nor- mal erythrocytes. A model for /3 thalassemia.

Mark D. Scott, Philippe Rouyer-Fessard, Bertram H. Lubin, and Yves Beuzard

17960 Combined lipase deficiency in the mouse. Evidence of impaired lipase processing and secretion.

Richard C. Davis, Osnat Ben-Zeev, Dominique Martin, and Mark H. Doolittle

17967 Determination of the amounts of the protein synthe- sis initiation and elongation factors in wheat germ.

Karen S. Browning, Jean Humphreys, William Hobbs, Gayle B. Smith, and Joanne M. Ravel

17974 A merozoite receptor protein from Plasmodium knowlesi is highly conserved and distributed throughout Plasmodium.

Andrew P. Waters, Alan W. Thomas, Judith A. Deans, Graham H. Mitchell, Diana E. Hudson, Louis H. Miller, Thomas F. McCutchan, and Sydney Cohen

17980 Expression of actin in Escherichia coli. Aggrega- tion, solubilization, and functional analysis.

Stewart Frankel, John Condeelis, and Leslie Leinwand

17988 A truncation mutation in the avian &adrenergic receptor causes agonist-induced internalization and GTP-sensitive agonist binding characteristic of mammalian receptors.

Cornelia Hertel, Mary H. Nunnally, Stephen K-F. Wang, E. A. Murphy, Elliott M. Ross, and John P. Perkins

17995 Identification of somatostatin receptors by covalent labeling with a novel photoreactive somatostatin analog.

Patricia J. Brown, Angie B. Lee, Marjorie G. Norman, David H. Presky, and Agnes Schonbrunn

18005 Age-dependent decrease in the heat-inducible DNA sequence-specific binding activity in human diploid fibroblasts.

Hueng-Sik Choi, Zheng Lin, Boshan Li, and Alice Y.-C. Liu

18012 The human erythrocyte contains two forms of phos- phatidylinositol-4-phosphate 5-kinase which are differentially active toward membranes.

Chantal E. Bazenet, Antonio Ruiz Ruano, Jennifer L. Brockman, and Richard A. Anderson

18023 Transforming growth factor fi alters the expression of heparan sulfate proteoglycan in human colon car- cinoma cells.

George R. Dodge, Zlona Kovalszky, John R. Hassell, and Renato V. Zozzo

18030 Identification of retinal insulin receptors using site- specific antibodies to a carboxyl-terminal peptide of the human insulin receptor a-subunit. Up-regula- tion of neuronal insulin receptors in diabetes.

Steven A. Rosenzweig, Churlotta Zetterstrdm, and Ann Benjamin

18035 Brain-type glucose transporter (GLUT-l) is selec- tively localized to the blood-brain barrier. Studies with quantitative Western blotting and in situ hy- bridization.

William M. Pardridge, Ruben J. Boado, and Christine R. Farrell

ADDITIONS AND CORRECTIONS

18041 The lumazine synthase-riboflavin synthase complex of Bacillus subtilis. Crystallization of reconstituted icosahedral D-subunit capsids. Vol. 265 (1990) 12686-12689.

Karin Schott, Rudolf Ladenstein, Astrid K&zig, and Adelbert Bather

18041 Xenopus transcription factor IIIA. Evidence for het- erogeneity of Z? + binding affinities and specific fi$;lgg of cysteine 28’7. Vol. 265 (1990) 13792-

Myu; K. Han, Francis P. Cyran, Mark T. Fisher, San H. Kim, and Ann Ginsburg

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Vol. 265, No. 29

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17525

The Journal of Biological Chemistry

CONTENTS Arranged by Subject Categories

October 15, 1990

MINIREVIEW

Platelet-activating factor. Stephen M. Prescott, Guy A. Zimmerman, and Thomas

M. McIntyre

CARBOHYDRATES, LIPIDS, AND OTHER NATURAL PRODUCTS

Identification of sorbitol 3-phosphate and fructose 3-phosphate in normal and diabetic human eryth- rocytes.

Aqqaluk Petersen, Benjamin S. Szwergold, Francis Kap- pier, Martin Weingarten, and Truman R. Brown

Regulation of the expression of Galal-3Galfll- 4GlcNAc glycosphingolipids in kidney.

Stephen P. Hendricks, Pingren He, Cheryl L. M. Stults, and Bruce A. Macher

CELL BIOLOGY AND METABOLISM

Differential effects of brefeldin A on sialylation of N- and O-linked oligosaccharides in low density lipoprotein receptor and epidermal growth factor _ _ receptor.

Satoshi Shite. Tadashi Seeuchi. Hiromoto Mizosuchi. Mayumi Ono, and Michihiko Kuwano

- ,

Sequence identity between the az-macroglobulin receptor and low density lipoprotein receptor-re- lated protein suggests that this molecule is a multi- functional receptor.

Dudley K. Strickland, James D. Ashcom, Suzanne Williams, Wilson H. Burgess, Mary Migliorini, and W. Scott Argraves

Endothelin, a potent peptide agonist in the liver. Chandrashekhar R. Gandhi, Katherine Stephenson, and

Merle S. Olson

Distinctive regulation of the functional linkage be- tween the human cation-independent mannose 6- phosphate receptor and GTP-binding proteins by insulin-like growth factor II and mannose 6-phos- phate.

Yoshitake Murayama, Takashi Okamoto, Etsuro Ogata, Tomiko Asano, Taroh Iiri, Toshiaki Katada, Michio Ui, Jeffrey H. Grubb, William S. Sly, and Zkuo Nishimoto

Vasopressin-induced polyphosphoinositide and phosphatidylcholine degradation in fibroblast. Temporal relationship for formation of phospholi- pase C and phospholipase D hydrolysis products.

Chunfa Huang and Myles C. Cabot

Calcium mediates the interconversion between two states of the liver inositol 1,4,5-trisphosphate receptor.

France Pietri, Mauricette Hilly, and Jean-Pierre Mauger

Receptor-operated calcium influx in rat hepato- cytes. Identification and characterization using manganese.

George E. N. Kass, Juan Llopis, Sek C. Chow, Steven K. Duddy, and Sten Orrenius

Purification and characterization of a 19-kilodalton intracellular protein. An activation-regulated pu- tative protein kinase C substrate of T lymphocytes.

Martin Gullberg, Kristina Noreus, Gdran Brattsand, Bengt Friedrich, and Victoria Shingler

A neutral phospholipase D activity from rat brain synaptic plasma membranes. Identification and par- tial characterization.

Vered Chalifa, Heidi Mohn, and Mordechai Liscovitch

Oxygen and temperature dependence of stimulated insulin secretion in isolated rat islets of Langerhans.

Mitsuaki Ohta, David Nelson, June Nelson, Martin D. Meglasson, and Maria Ereciriska

17545

17550

17576

17601

17613

17644

17657

17665

17700

17738

17764

17771

17805

17837

17849

Sulfate transport by rat liver lysosomes. Adam J. Jonas and Helgi Jobe

Diradylglycerol synergizes with an anionic amphi- phile to activate superoxide generation and phos- phorylation of p47,h.,. in a cell-free system from human neutrophils.

David N. Burnham, David J. Uhlinger, and J. David Lambeth

Regulation of platelet-activating factor receptor and platelet-activating factor receptor-mediated bi- ological response by CAMP in rat Kupffer cells.

Wei Chao, Heling Liu, Weiguo Zhou, Donald J. Hana- han, and Merle S. Olson

Different pathways of [3H]inositol phosphate for- mation mediated by ai.- and au,-adrenergic recep- tors.

Karen M. Wilson and Kenneth P. Minneman

Agonist stimulation of Na+/K+/Cl-cotransport in rat glomerular mesangial cells. Evidence for protein kinase C-dependent and Ca’+/calmodulin-dependent pathways.

Toshio Homma, Kevin D. Burns, and Raymond C. Harris

Spectroscopic evidence for ligand-induced confor- mational change in NADP+:isocitrate dehydrogen- ase.

Virginia L. Seery and Harold M. Farrell, Jr.

Agents that raise CAMP in human T lymphocytes release an intracellular pool of calcium in the ab- sence of inositol phosphate production.

Linda L. Kelley, Peter F. Blackmore, Stanley E. Graber, and Stanford J. Stewart

Variation of cofactor levels in Escherichia coli. Se- quence analysis and expression of the pm@ gene encoding nicotinic acid phosphoribosyltransferase.

Marcel G. Wubbolts, Peter Terpstra, Jan B. van Beilen, Jaap Kingma, H. A. Rene Meesters, and Bernard Witholt

Stimulus-responsive and rapid formation of inositol pentakisphosphate in cultured adrenal chromaffin cells.

Nobuyuki Sasakawa, Toshio Nakaki, and Ryuichi Kato

Purification and characterization of glycosyl-phos- phatidylinositol-specific phospholipase D.

Kuo-Sen Huang, Shirley Li, Wen-Jian C. Fung, Jeffrey D. Hulmes, Linda Reik, Yu-Ching E. Pan, and Martin G. Low

Biosynthesis and processing of renal mitochondrial glutaminase in cultured proximal tubular epithelial cells and in isolated mitochondria.

Shrima Y. Perera, Tai C. Chen, and Norman P. Curthoys

Retinoic acid modulation of transmembrane signal- ing. Analysis in F9 teratocarcinoma cells.

Patricia A. Galvin-Parton, David C. Watkins, and Craig C. Malbon

Accumulation of apolipoproteins in the regenerat- ing and remyelinating mammalian peripheral nerve. Identification of apolipoprotein D, apolipo- protein A-IV, apolipoprotein E, and apolipoprotein A-I.

Janet K. Boyles, Lucia M. Notterpek, and Linda J. Anderson

Binding of human syndecan to extracellular matrix proteins.

Klaus Elenius, Markku Salmivirta, Pirjo Znki, Markku Mali, and Markku Jalkanen

Transcriptional regulation of the liver &galactoside cy2,6+ialyltransferase by glucocorticoids.

XueCheng Wang, Terry J. Smith, and Joseph T. Y. Lau

l Indicates a Communication

vi

17868

17876

17883

17891

17935

17946

17953

17960

17988

18012

18023

18030

18035

17436

17446

Ligand-induced phosphorylation of the human in- terferon-y receptor. Dependence on the presence of a functionally active receptor.

Gurjit K. Khurana Hershey, David W. McCourt, and Robert D. Schreiber

The 204-kDa smooth muscle myosin heavy chain is phosphorylated in intact cells by casein kinase II on a serine near the carboxyl terminus.

Christine A. Kelley and Robert S. Adelstein

Isoprenoid modification of G25K (G,), a low molec- ular mass GTP-binding protein distinct from ~21’““.

William A. Maltese and Kathleen M. Sheridan

Formation of high molecular weight dermatan sul- fate proteoglycan in bovine aortic endothelial cell cultures. Evidence for transglutaminase-catalyzed cross-linking to fibronectin.

Michael G. Kinsella and Thomas N. Wight

Low K+ increases Na,K-ATPase abundance in LLC- PK,/Cl, cells by differentially increasing j3, and not (Y, subunit mRNA.

Leslie Lescale-Matys, Charles B. Hensley, Romana Crnkovic-Markovic, Daun S. Putnam, and Alicia A. McDonough

Purification and expression of gCap39. An intra- cellular and secreted Ca’+-dependent actin-binding protein enriched in mononuclear phagocytes.

Paul A. Johnston, Fu-Xin Yu, Gary A. Reynolds, Helen L. Yin, Carolyn R. Moomaw, Clive A. Slaughter, and Thomas C. Siidhof

Entrapment of purified a-hemoglobin chains in nor- mal erythrocytes. A model for @ thalassemia.

Mark D. Scott, Philippe Rouyer-Fessard, Bertram H. Lubin, and Yves Beuzard

Combined lipase deficiency in the mouse. Evidence of impaired lipase processing and secretion.

Richard C. Davis, Osnat Ben-Zeev, Dominique Martin, and Mark H. Doolittle

A truncation mutation in the avian B-adrenereic receptor causes agonist-induced internalization aid GTP-sensitive agonist binding characteristic of mammalian receptors.

Cornelia Hertel, Mary H. Nunnally, Stephen K-F. Wong, E. A. Murphy, Elliott M. Ross, and John P. Perkins

The human erythrocyte contains two forms of phos- nhatidvlinositol-4-uhosnhate 5-kinase which are differentially active toward membranes.

Chantal E. Bazenet, Antonio Ruiz Ruano, Jennifer L. Brockman, and Richard A. Anderson

Transforming growth factor B alters the expression of heparan sulfate proteoglycan in human colon car- cinoma cells.

George R. Dodge, Ilona Kovalszky, John R. Hossell, and Renato V. Zotzo

Identification of retinal insulin receptors using site- specific antibodies to a carboxyl-terminal peptide of the human insulin receptor a-subunit. Up-regula- tion of neuronal insulin receptors in diabetes.

Steven A. Rosenzweig, Charlotta Zetterstrom, and Ann Benjamin

Brain-type glucose transporter (GLUT-l) is selec- tively localized to the blood-brain barrier. Studies with quantitative Western blotting and in situ hy- bridization.

William M. Pardridge, Ruben J. Boado, and Christine R. Farrell

ENZYMOLOGY

Multiple roles of divalent cation in the terminal deoxynucleotidyltransferase reaction.

Lucy M. S. Chang and F. J. Bollum

Resonance-enhanced Raman scattering from the molybdenum center of xanthine oxidase.

W. Anthony Oertling and Russ Hille

17493

17533

17539

17584

17637

17746

17854

17941

l 17405

017420

-17428

17506

17688

17720

17786

vii

Construction and properties of active chimeric en- zymes between human aldolases A and B. Analysis of molecular regions which determine isozyme-spe- cific functions.

Yoshihiko Kitaiima. Yozo Takasaki, Isamu Takahashi. and Katsuji Hori”

Hydroxyl radical is not a product of the reaction of xanthine oxidase and xanthine. The confounding problem of adventitious iron bound to xanthine ox- idase.

Bradley E. Britigan, Sovitj Pou, Gerald M. Rosen, Diane M. Lilleg, and Garry R. Buettner

Analysis of the generation and inhibition of factor Xa. Area under generation curves is independent of enzyme generation rate.

Jolyon Jesty

Identification of the ATP-binding domain of vacci- nia virus thymidine kinase.

Margaret E. Black and Dennis E. Hruby

Stopped flow and steady state kinetic studies of the effects of metabolites on the soluble form of NADP+:isocitrate dehydrogenase.

Harold M. Farrell, Jr., Jude T. Deeney, Erich K. Hild, and Thomas F. Kumosinski

Characterization of recombinant tick anticoagulant peptide. A highly selective inhibitor of blood coag- ulation factor Xa.

Michael P. Neeper, Lloyd Wanman, Donna E. Smith, Cheryl A. Schulman, Mohinder Sardana, Ronald W. Ellis, Linda W. Schafer, Peter K. S. Siegl, and George P. Vlasuk

von Willebrand factor is a cofactor for thrombin- catalyzed cleavage of the factor VIII light chain.

David C. Hill-Eubanks and Pete Lollar

Feedback regulation of phospholipase C-j3 by pro- tein kinase C.

Sung Ho Ryu, Uh-Hyun Kim, Matthew I. Wahl, Alice B. Brown, Graham Carpenter, Kuo-Ping Huang, and Sue Goo Rhee

MEMBRANES AND BIOENERGETICS

The epitope for monoclonal antibody A20 (amino acids 870-890) is located on the luminal surface of the Ca’+-ATPase of sarcoplasmic reticulum.

David M. Clarke, Tip W. Loo, and David H. MacLennan

Binding of annexin V/placental anticoagulant pro- tein I to platelets. Evidence for phosphatidylserine exposure in the procoagulant response of activated platelets.

Perumal Thiagarajan and Jonathan F. Tait

An mRNA from human brain encodes an isoform of the B subunit of the vacuolar H+-ATPase.

Paul Bernasconi, Thomas Rausch, Ilona Struve, Louis Morgan, and Lincoln Taiz

Plasma cell membrane glycoprotein PC-l. cDNA cloning of the human molecule, amino acid se- quence, and chromosomal location.

Michael F. Buckley, Katherine A. Loveland, William J. McKinstry, 0. Margaret Garson, and James W. Goding

In situ cross-linking of human erythrocyte band 3 by bis(sulfosuccinimidyl)suberate. Evidence for li- gand modulation of two alternate quaternary forms: covalent band 3 dimers and noncovalent tetramers formed by the association of two covalent dimers.

James M. Salhany, Renee L. Sloan, and Karen A. Cordes

Thylakoid membrane protein topography. Location of the termini of the chloroplast cytochrome be on the stromal side of the membrane.

Andrzej Szczepaniak and William A. Cramer

cDNA cloning of a dihydropyridine-sensitive cal- cium channel from rat aorta. Evidence for the ex- istence of alternatively spliced forms.

Walter J. Koch, Patrick T. Ellinor, and Arnold Schwartz

l Indicates a Communication

NUCLEIC ACIDS, PROTEIN SYNTHESIS, AND MOLECULAR GENETICS

017389

017393

017397

017409

17441

17451

17463

17474

17560

17593

17627

17673

17780

17792

17798

Multiple preproenkephalin transcriptional start sites are induced by stress and cholinergic path- ways.

Gary Weisinger, Joseph D. DeCristofaro, and Edmund F. LaGamma

A novel functional domain of an a-like DNA polym- erase. The binding site on the herpes simplex virus polymerase for the viral UL42 protein.

Paul Digard and Donald M. Coen

An intragenic region downstream from the dihydro- folate reductase promoter is required for replica- tion-dependent expression.

Edward E. Schmidt, Rebecca A. Owen. and Garv F. Merrill

Transcriptional activator LEU3 of yeast. Mapping of the transcriptional activation function and sie- nificance of ac&ation domain tryptophans. -

Kemin Zhou and Gunter B. Kohlhaw

Recognition of the tRNA-like structure in tobacco mosaic viral RNA by ATP/CTP:tRNA nucleotidyl- transferases from Escherichia coli and Saccharo- m yces cerevisiae.

Lisa A. Hegg, Maybelle Kou, and David L. Thurlow

Molecular cloning of wheat dihydrodipicolinate synthase.

Takashi Kaneko, Takashi Hashimoto, Rosarin Kumpaisal, and Yasuyuki Yamada

cDNA sequence, in vitro synthesis, and intramito- chondrial lipoylation of H-protein of the glycine cleavage system.

Kazuko Fujiwara, Kazuko Okamura-Zkeda, and Yutaro Motokawa

Sodium butyrate selectively alters thyroid hormone receptor gene expression in GH3 cells.

Mitchell A. Lamar

a5, a3, and Non-a3. Three clustered avian genes encoding neuronal nicotinic acetylcholine receptor- related subunits.

Sabine Couturier, Linda Erkman, Soledad Valera, Duri Rungger, Sonia Bertrand, Jim Boulter, Marc Ballivet, and Daniel Bertrand

Characterization of the equilibrium binding of Xen- opus transcription factor IIIA to the 5 S RNA gene.

Paul J. Romaniuk

RNA primary sequence or secondary structure in the translational initiation region controls expres- sion of two variant interferon-8 genes in Esche- richia coli.

Gerhard Gross, Christian Mielke, Znge Hollatz, Helmut Blocker, and Ronald Frank

Osmotic control of prolJ transcription is mediated through direct action of potassium glutamate on the transcription complex.

William S. Prince and Merna R. Villarejo

Deficient expression of the gene coding for decorin in a lethal form of Marfan syndrome.

Leena Pulkkinen, Katariina Kainulainen, Tom Krusius, Pekka Makinen, Jens Schollin, Karl-Henrik Gustavsson, and Leena Peltonen

Molecular basis of tyrosinase-negative oculocuta- neous albinism. A single base mutation in the tyro- sinase gene causing arginine to glutamine substitu- tion at nosition 59.

Atsu&i Takeda, Yasushi Tomita, Jun Matsunaga, Hach- iro Tagami, and Shigeki Shibahara

Structural and functional analysis of two Campy- lobacter jejuni flagellin genes.

Piet J. M. NuLj’ten, Fons J. A. M. van Asten, Wim Gaastra, and Bernard A. M. van der Zeijst

17816

17826

17844

17906

17911

17921

17928

17967

17974

17980

18005

017413

017416

17520

17568

17607

RNA polymerase II subunit RPBlO is essential for yeast cell viability.

Nancy A. Woychik and Richard A. Young

Specific DNA cleavage and binding by vaccinia vi- rus DNA topoisomerase I.

Stewart Shuman and John Prescott

Molecular cloning of an amino acid-regulated mRNA (amino acid starvation-induced) in rat hep- atoma cells.

Neil F. Shay, Harry S. Nick, and Michael S. Kilberg

Opsin of Calliphora peripheral photoreceptors Rl- 6. Homology with Drosophila Rhl and posttrans- lational processing.

Armin Huber, Dean P. Smith, Charles S. Zuker, and Reinhard Paulsen

Purification and characterization of uroximal se- quence element-binding protein 1, a transcription activating protein related to Ku and TREF that binds the proximal sequence element of the human Ul promoter.

Mark W. Knuth, Samuel I. Gunderson, Nancy E. Thompson, Lee A. Strasheim, and Richard R. Burgess

Two mutations produce intron insertion in mRNA and elongated &subunit of human &hexosamini- dase.

Bonnie Dlott, Alessandra d’Azzo, Doris V. K. Quon, and Elizabeth F. Neufeld

The cl repressor inactivator protein coi of bacteri- ophage Pl. Cloning and expression of coi and its interference with cl repressor function.

Thorsten Heinzel, Mathias Velleman, and Heinz Schuster

Determination of the amounts of the protein synthe- sis initiation and eloneation factors in wheat eerm.

Karen S. Browning, Jean Humphreys, William &obbs, Gayle B. Smith, and Joanne M. Ravel

A merozoite receptor protein from Plasmodium knowlesi is highly conserved and distributed throughout Plasmodium.

Andrew P. Waters, Alan W. Thomas, Judith A. Deans, Graham H. Mitchell, Diana E. Hudson, Louis H. Miller, Thomas F. McCutchan, and Sydney Cohen

Expression of actin in Escherichia coli. Aggrega- tion, solubilization, and functional analysis.

Stewart Frankel, John Condeelis, and Leslie Leinwand

Age-dependent decrease in the heat-inducible DNA sequence-specific binding activity in human diploid fibroblasts.

Hueng-Sik Choi, Zheng Lin, Boshun Li, and Alice Y.-C. Liu

PROTEIN CHEMISTRY AND STRUCTURE

Preliminary crystallographic data for the thiamin diphosphate-dependent enzyme pyruvate decarbox- ylase from brewers’ yeast.

Fred Dyda, William Furey, Subramanyam Swamina- than, Mar& Sax, Bruce Farrenkopf, and Frank Jordan

Identification of soluble interleukin-1 binding pro- tein in cell-free supernatants. Evidence for soluble interleukin- 1 receptor.

Judith G. Giri, Robert C. Newton, and Richard Horak

Assembly of functional rhodopsin requires a disul- fide bond between cysteine residues 110 and 187.

Sadashiva S. Karnik and H. Gobind Khorana

Location of helical regions in tetrapyrrole-contain- ing proteins by a helical hydrophobic moment analy- sis. Application to phytochrome.

William Parker and Pill-Soon Song

Phosphorylation of smooth muscle caldesmon by calmodulin-dependent protein kinase II. Identifica- tion of the phosphorylation sites.

Mitsuo Zkebe and Sheila Reardon

l Indicates a Communication

ix

17649 The crystal structure of a lysine 49 phospholipase Aa from the venom of the cottonmouth snake at 2.0- A resolution.

Debra R. Holland. Laura L. Clancv. Steven W. Much- more, Timothy J. Ryde, Howard M.<Einspahr, Barry C. Fintel, Robert L. Heinrdzson, and Keith D. Watenpaugh

17680 A tetrameric iron superoxide dismutase from the eucaryote Tetrahymena pyriformis.

Donatella Barra, M. Eugenia Schinina, Francesco Bossa, Krystyna Puget, Patrice Durosay, Annie Guissani, and A. Michael Michelson

17694 Purification and characterization of functional re- combinant a-amidating enzyme secreted from mam- malian cells.

Gary A. Beaudry, Nozer M. Mehta, Martha L. Ray, and Arthur H. Bertelsen

17706 Carbohydrate-binding protein 35. Isoelectric points of the polypeptide and a phosphorylated derivative.

Elizabeth A. Cowles, Neera Agrwal, Richard L. Anderson, and John L. Wang

17713 Identification of a critical cysteine in EcoRI DNA methyltransferase by mass spectrometry.

Elizabeth A. Everett, Arnold M. Falick, and Norbert 0. Reich

17727 Localization of c-lvsvl-r-elutamvl cross-links in five human a2-macroglobulin~proteihase complexes. Na- ture of the high molecular weight cross-linked prod- ucts.

Lars Sottrup-Jensen, H. Frede Hansen, Helge Skak Ped- ersen, and Lene Kristensen

17753 Mouse satellite DNA is transcribed in senescent car- diac muscle.

James W. Gaubatz and Richard G. Cutler

17759 The subunit Sl is important for pertussis toxin se- cretion.

Mariagrazia Pizza, Massimo Bugnoli, Roberto Manetti, Antonello Covacci, and Rino Rappuoli

17820 An insulin-like growth factor I/insulin hybrid ex- hibiting high potency for interaction with the type I insulin-like growth factor and insulin receptors of placental plasma membranes.

Jose F. Cara, Raghavendra G. Mirmira, Satoe H. Naka- gawa, and Howard S. Tager

17859 Free thiols of platelet thrombospondin. Evidence for disulfide isomerization.

Mark V. Speziale and Thomas C. Detwiler

17899 Selenium and amino acid composition of selenopro- tein P, the major selenoprotein in rat serum. -

Robert Read, Terri Bellew, Jian-Guo Yang, Kristina E. Hill, Ivan S. Palmer, and Raymond F. Burk

17995 Identification of somatostatin receptors by covalent labeling with a novel photoreactive somatostatin analog.

Patricia J. Brown, Angie 8. Lee, Marjorie G. Norman, David H. Presky, and Agnes Schonbrunn

18041 The lumazine synthase-riboflavin synthase complex of Bacillus subtilis. Crystallization of reconstituted icosahedral &subunit capsids. Vol. 265 (1990) 12686-12689.

Karin Schott, Rudolf Ladenstein, Astrid Konig, and Adelbert Bather

18041 Xenopus transcription factor IIIA. Evidence for het- erogeneity of Zn + binding affinities and specific labeling of cysteine 287. Vol. 265 (1990) 13792- 13799.

Myun K. Han, Francis P. Cyran, Mark T. Fisher, San H. Kim, and Ann Ginsburg