0707 rnaseq prep - duke universitypeople.duke.edu/.../_downloads/0707_rnaseq_prep.pdf · 2017. 7....
TRANSCRIPT
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Group Assignments
• Non-self-assembled
• show up next week
• Self-Assembled (optional):
• email [email protected] by noon on Sunday (7/9)
• proposed group members
• expertise of each member (e.g. bio, stats, compute)
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RNA-Seq Sample Preparation Theory
From Sample to Data
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Overview
• From Library to Data
• Illumina Sequencing
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Not Appearing Today
• Data Analysis
• Software
• Details of our experiment
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Major Experiment Components
1.Growth
2.Sample Collection
3.RNA Extraction
4.Ribosomal RNA Depletion
5.Library Preparation
http://cse.ksu.edu/REU/S11/bvosburg/FLASK.jpg
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Major Experiment Components
1.Growth
2.Sample Collection
3.RNA Extraction
4.Ribosomal RNA Depletion
5.Library Preparation
http://cse.ksu.edu/REU/S11/bvosburg/FLASK.jpg
![Page 7: 0707 rnaseq prep - Duke Universitypeople.duke.edu/.../_downloads/0707_rnaseq_prep.pdf · 2017. 7. 31. · NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction](https://reader034.vdocument.in/reader034/viewer/2022052010/601f74658add064a235c0a1b/html5/thumbnails/7.jpg)
Growth and Sample Collection
• Avoid Confounding Factors!
• System Specific
• Experiment Specific
• Avoid RNA response to sample collection!
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Sample Collection Options
• Flash freeze
• RNA stabilizers
• RNA protect
• RNAlater
• Phenol (hot acid phenol, trizol, etc)
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Major Experiment Components
1.Growth
2.Sample Collection
3.RNA Extraction
4.Ribosomal RNA Depletion
5.Library Preparation
http://cse.ksu.edu/REU/S11/bvosburg/FLASK.jpg
![Page 10: 0707 rnaseq prep - Duke Universitypeople.duke.edu/.../_downloads/0707_rnaseq_prep.pdf · 2017. 7. 31. · NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction](https://reader034.vdocument.in/reader034/viewer/2022052010/601f74658add064a235c0a1b/html5/thumbnails/10.jpg)
RNA Extraction: Why?
• Have cells, need RNA
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RNA Extraction Options
• Kits
• Qiagen RNeasy Mini Kit
• Etc
• Phenol (hot acid phenol, trizol, etc)
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Major Experiment Components
1.Growth
2.Sample Collection
3.RNA Extraction
4.Ribosomal RNA Depletion
5.Library Preparation
http://cse.ksu.edu/REU/S11/bvosburg/FLASK.jpg
![Page 13: 0707 rnaseq prep - Duke Universitypeople.duke.edu/.../_downloads/0707_rnaseq_prep.pdf · 2017. 7. 31. · NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction](https://reader034.vdocument.in/reader034/viewer/2022052010/601f74658add064a235c0a1b/html5/thumbnails/13.jpg)
Ribosomal RNA Depletion
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rRNA Depletion: Why?
Genome Biol. 2012; 13(3): r23. 10.1186/gb-2012-13-3-r23
(a) (b)
Coeĸcient of DeterminaƟon (R2)
0% 20% 40% 60% 80% 100%
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus
0 0.2 0.4 0.6 0.8 1
% CDS % rRNA % Other
Total RNA (No depleƟon)
Ribo-Zero
MICROBExpress
DSN
mRNA-ONLY
OvaƟon ProkaryoƟc
RNA-seq
(a) (b)
Coeĸcient of DeterminaƟon (R2)
0% 20% 40% 60% 80% 100%
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus
0 0.2 0.4 0.6 0.8 1
% CDS % rRNA % Other
Total RNA (No depleƟon)
Ribo-Zero
MICROBExpress
DSN
mRNA-ONLY
OvaƟon ProkaryoƟc
RNA-seq
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(a) (b)
Coefficient of Determination (R2)
0% 20% 40% 60% 80% 100%
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus
0 0.2 0.4 0.6 0.8 1
% CDS % rRNA % Other
Total RNA
(No depletion)
Ribo-Zero
MICROBExpress
DSN
mRNA-ONLY
Ovation
Prokaryotic
RNA-seq
rRNA Depletion: Options
Genome Biol. 2012; 13(3): r23. 10.1186/gb-2012-13-3-r23
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rRNA Depletion: How?
Ribo-Zero Magnetic Kits, User Guide, Part # 15065382, Rev A, November 2014
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rRNA Depletion: How?
Ribo-Zero Magnetic Kits, User Guide, Part # 15065382, Rev A, November 2014
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rRNA Depletion: How?
Ribo-Zero Magnetic Kits, User Guide, Part # 15065382, Rev A, November 2014
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(a) (b)
Coefficient of Determination (R2)
0% 20% 40% 60% 80% 100%
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus
0 0.2 0.4 0.6 0.8 1
% CDS % rRNA % Other
Total RNA
(No depletion)
Ribo-Zero
MICROBExpress
DSN
mRNA-ONLY
Ovation
Prokaryotic
RNA-seq
rRNA Depletion: Alternatives
Genome Biol. 2012; 13(3): r23. 10.1186/gb-2012-13-3-r23
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(a) (b)
Coefficient of Determination (R2)
0% 20% 40% 60% 80% 100%
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus R.sphaeroides
E.coli P.marinus
R.sphaeroides E.coli
P.marinus
0 0.2 0.4 0.6 0.8 1
% CDS % rRNA % Other
Total RNA
(No depletion)
Ribo-Zero
MICROBExpress
DSN
mRNA-ONLY
Ovation
Prokaryotic
RNA-seq
rRNA Depletion: Alternatives
Genome Biol. 2012; 13(3): r23. 10.1186/gb-2012-13-3-r23
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rRNA Depletion: Alternatives
• mRNA enrichment• poly(A) mRNA enrichment• Selective polyadenylation of mRNAs• Antibody capture of RNAs that interact with a
specific protein• Non-random priming
• rRNA depletion• Ribosomal RNA capture• Duplex-specific nuclease (DSN) normalization• Degradation of processed RNA
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rRNA Depletion: Alternatives
• mRNA enrichment• poly(A) mRNA enrichment• Selective polyadenylation of mRNAs• Antibody capture of RNAs that interact with a
specific protein• Non-random priming
• rRNA depletion• Ribosomal RNA capture• Duplex-specific nuclease (DSN) normalization• Degradation of processed RNA
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rRNA Depletion: Alternatives
• mRNA enrichment• poly(A) mRNA enrichment• Selective polyadenylation of mRNAs• Antibody capture of RNAs that interact with a
specific protein• Non-random priming
• rRNA depletion• Ribosomal RNA capture• Duplex-specific nuclease (DSN) normalization• Degradation of processed RNA
***
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Major Experiment Components
1.Growth
2.Sample Collection
3.RNA Extraction
4.Ribosomal RNA Depletion
5.Library Preparation
http://cse.ksu.edu/REU/S11/bvosburg/FLASK.jpg
![Page 25: 0707 rnaseq prep - Duke Universitypeople.duke.edu/.../_downloads/0707_rnaseq_prep.pdf · 2017. 7. 31. · NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction](https://reader034.vdocument.in/reader034/viewer/2022052010/601f74658add064a235c0a1b/html5/thumbnails/25.jpg)
Illumina SequencingFrom Library to Data
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Library Preparation
+
=
200-1000 bpDNA
Fragment
Adapters
Sequencing“Library”
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Dye-terminator Sanger Sequencing
https://dnacore.mgh.harvard.edu/new-cgi-bin/site/pages/sequencing_pages/seq_troubleshooting.jsp
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Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGA
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Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGA
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Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGAT
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Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGAT
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C
Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGAT
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C
Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGAT
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C
Sequencing
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGAT G
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Dye-terminator Sanger Sequencing
https://dnacore.mgh.harvard.edu/new-cgi-bin/site/pages/sequencing_pages/seq_troubleshooting.jsp
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How?
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How?
• Separate
• Detect
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Template immobilization
Nature Reviews Genetics 11, 31-46, doi:10.1038/nrg2626
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A Flow Cell
http://global.fncstatic.com/static/managed/img/Scitech/neanderthal%20genome%205.jpg
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Pass Around Flow Cells!!!
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A Flow Cell
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Bind Library
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1st Cycle
G
C
G
A
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1st Cycle
G
C
G
A
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2nd Cycle
GT
CG
GA
AA
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2nd Cycle
GT
CG
GA
AA
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3rd Cycle
GTA
CGC
GAG
AAC
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3rd Cycle
GTA
CGC
GAG
AAC
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Cluster generation – hybridization and amplification
OHOH
diol diol diol diol diol diol diol
Grafted flowcellP7 P5
Template Hybridization
Initial extension(Fusion Polymerase – v4)
Denaturation(Formamide)
37
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Cluster generation – hybridization and amplification
diol diol diol diol diol diol diol diol
1st cycle Denaturation(Formamide)
1st cycle Annealing
1st cycleExtension
(Bst Polymerase)
2nd cycleDenaturation(Formamide)( )
n=35total
dioldiol dioldiol dioldiol
38
2nd cycle annealing
2nd cycle extension
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Sequencing Library
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Library Preparation: Why?
We have RNA. We need a DNA library.
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Library Preparation: How?
NEBNext® Ultra™ Directional RNA Library Prep Kit for Illumina® (#E7420)
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Library Preparation: How?
1.RNA Fragmentation
2.cDNA Synthesis
3.Adapter Ligation
4.PCR Enrichment
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Library Prep Workflow
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Fragmentation
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Fragmentation
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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• Efficient cluster generation and sequencing
• Distribution of reads across mRNA
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
Library Prep Fragmentation: Why?
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Library Prep Fragmentation: Why?
pre-mRNA
mRNA
Library
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Library Prep Fragmentation: Why?
pre-mRNA
mRNA
Library
Fragmentation
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Library Prep Fragmentation: Why?
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• Heat with divalent metal cation (Chemical)
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
Library Prep Fragmentation: How?
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• Degraded RNA
• Small RNAs
• DNA Fragmentation uses Physical or Enzymatic methods
• Needs to be Random!!!
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
Library Prep Fragmentation: Alternatives?
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cDNA Synthesis
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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cDNA Synthesis
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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cDNA Synthesis
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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cDNA Synthesis: Why?
• Have RNA, need DNA
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cDNA Synthesis: How?
• First Strand: Reverse Transcriptase
• Second Strand:
• RNase H: generate RNA primers
• DNA polymerase I: DNA synthesis
• DNA ligase: ligate fragments
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End-Repair and dA-Tailing
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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End-Repair and dA-Tailing
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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End-Repair and dA-Tailing
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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End-Repair and dA-Tailing
• Prepare fragments for adapter ligation
• Generate blunt ends
• Then generate 3’ A overhang
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End Repair
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End Repair: What
5’-CTGATCTGACT -3'3’-GACTAGACTGACTAC-5’
5’-CTGATCTGACTGATG-3’3’-GACTAGACTGACTAC-5’
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Why are ends NOT blunt?
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Why are ends NOT blunt?
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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dA-Tailing
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dA-Tailing: What
5’-CTGATCTGACTGATG-3'3’-GACTAGACTGACTAC-5’
5’- CTGATCTGACTGATGA-3'3’-AGACTAGACTGACTAC -5’
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dA-Tailing: Why
• Allow sticky-end ligation to a “universal fragment”
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dA-Tailing: Why5’- GATGATTGCTGAAGA-3'3’-ACTACTAACGACTTC -5’
5’- AGTACTGTTCTTTATA-3'3’-ATCATGACAAGAAATA -5’
+
5’- CCATG-3'3’-TGGTAC-5’
=
5’- GATGATTGCTGAAGACCATG-3'3’-ACTACTAACGACTTCTGGTAC-5’
5’- AGTACTGTTCTTTATACCATG-3'3’-ATCATGACAAGAAATATGGTAC-5’
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dA-Tailing: Why?
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Adapter Ligation
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Adapter Ligation
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Adapter Ligation
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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U Excision
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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U Excision
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
Why?
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U Excision
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Size Selection
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Size Selection
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Clean Up and Size Selection: Why?• Remove regents from previous step
• Eliminate unwanted fragments
• Unligated adapter
• adapter dimers
• fragments without adapter
• Efficient cluster generation and sequencing
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Clean Up and Size Selection: How?
• Solid Phase Reversible Immobilisation (SPRI) beads
http://core-genomics.blogspot.com/2012/04/how-do-spri-beads-work.html
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Clean Up and Size Selection: How?
• Solid Phase Reversible Immobilisation (SPRI) beads
https://www.beckmancoulter.com/ucm/idc/groups/public/documents/webasset/glb_bci_003489.gif
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Size Selection: How?
http://core-genomics.blogspot.com/2012/04/how-do-spri-beads-work.html
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Size Selection: How?
http://core-genomics.blogspot.com/2012/04/how-do-spri-beads-work.html
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• Spin Columns
• Gel Purification
• DIY SPRI
Clean Up and Size Selection: Alternatives
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PCR Enrichment
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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PCR Enrichment
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
1. Extend adapter to full length
A. add barcodes
B. add priming sites
2. Amplify library
A. Make more of the good fragments
B. Leave the garbage in the dust
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PCR Enrichment
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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PCR Enrichment
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Barcodes
Why?
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BarcodesSample_Name I7_Index_ID index1_A P49-E1 AAGACCGT2_A P50-E2 TTGCGAGA3_A P51-E3 GCAATTCC4_A P52-E4 GAATCCGT5_A P53-E5 CCGCTTAA6_A P54-E6 TACCTGCA7_B P55-E7 GTCGATTG8_B P56-E8 TATGGCAC9_B P57-E9 CTCGAACA10_B P58-E10 CAACTCCA11_B P59-E11 GTCATCGT12_B P60-E12 GGACATCA13_C P61-F1 CAGGTTCA14_C P62-F2 GAACGAAG15_C P63-F3 CTCAGAAG16_C P64-F4 CATGAGCA17_C P65-F5 GACGAACT18_C P66-F6 AGACGCTA19_D P67-F7 ATAACGCC20_D P68-F8 GAATCACC21_D P69-F9 GGCAAGTT22_D P70-F10 GATCTTGC23_D P71-F11 CAATGCGA24_D P72-F12 GGTGTACA25_E P73-G1 TAGGAGCT26_E P74-G2 CGAATTGC27_E P75-G3 GTCCTAAG28_E P76-G4 CTTAGGAC29_E P77-G5 TCCACGTT30_E P78-G6 CAACACAG31_F P79-G7 GCCTTAAC32_F P80-G8 GTAAGGTG33_F P81-G9 AGCTACCA34_F P82-G10 CTTCACTG35_F P83-G11 GGTTGAAC36_F P84-G12 GATAGCCA37_G P85-H1 TACTCCAG38_G P86-H2 GGAAGAGA39_G P87-H3 GCGTTAGA40_G P88-H4 ATCTGACC41_G P89-H5 AACCAGAG42_G P90-H6 GTACCACA43_H P91-H7 GGTATAGG44_H P92-H8 CGAGAGAA45_H P93-H9 CAGCATAC46_H P94-H10 CTCGACTT47_H P95-H11 CTTCGGTT48_H P96-H12 CCACAACA
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BarcodesSample_Name I7_Index_ID index1_A P49-E1 AAGACCGT2_A P50-E2 TTGCGAGA3_A P51-E3 GCAATTCC4_A P52-E4 GAATCCGT5_A P53-E5 CCGCTTAA6_A P54-E6 TACCTGCA7_B P55-E7 GTCGATTG8_B P56-E8 TATGGCAC9_B P57-E9 CTCGAACA10_B P58-E10 CAACTCCA11_B P59-E11 GTCATCGT
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Nasty Stuff
• Sodium Azide
• Actinomycin D
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Library Preparation: Alternatives
1.Illumina Kits
2.Other Kits
3.DIY
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Additional Sequencing Details
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WhY Adapter?
+
=
200-1000 bpDNA
Fragment
Adapters
Sequencing“Library”
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Y Adapter?
Nature Neuroscience 17, 1463–1475 (2014) doi:10.1038/nn.3814
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Paired-End
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATCGAAAAG
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Paired-End
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATCGAAAAG
AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGAGACACACCT
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Strand-Specific Library
• Why Bother?
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Strand-Specific Library
http://evomicsorg.wpengine.netdna-cdn.com/wp-content/uploads/2014/01/SSlib.jpg
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Strand Specific Prep
NEBNext® UltraTM Directional RNA Library Prep Kit for Illumina®Instruction Manual, Revision 4.0
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Multiplexing (Barcodes)
http://nextgen.mgh.harvard.edu/IlluminaChemistry.html
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MiSeq HiSeq
Maximum Output 15 Gb 1500 Gb
Maximum Reads per Run 25 million 5 billion
Maximum Read Length 2 × 300 bp 2 × 150 bp
Run Time 4–55 hours 7 hours – 6 days
Cost $939 $1053
Cost/Mbp $7.51 $0.0042
HiSeq vs. MiSeq
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Illumina Video
https://www.youtube.com/watch?v=HMyCqWhwB8E
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Acknowledgements
•NEB
•Illumina
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Evaluation!