discussion #5:
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Discussion #5:. Life’s informational polymers. Central Dogma . What are proteins?. What are proteins?. Proteins are polymers of amino acids. General structure of amino acids. R-groups fall into 3 major types. Charged, polar Uncharged, polar Hydrophobic, nonpolar. - PowerPoint PPT PresentationTRANSCRIPT
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Discussion #5:
Life’s informational polymers
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Central Dogma
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What are proteins?What are proteins?•Proteins are polymers of amino acids
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General structure of amino acids
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R-groups fall into 3 major types• Charged, polar• Uncharged, polar• Hydrophobic, nonpolar
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How do amino acids link together to form proteins?
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Peptide bonds form between amino acids via a condensation reaction
H2O
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What are nucleic acids?• Nucleic acids are polymers of nucleotides• Nucleic acids consists of DNA or RNA
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Nucleotide Structure
What type of sugar is this?
How do we know?
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Phosphodiester bonds form between nucleotides via a condensation reaction
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Nitrogenous Bases• Ways to remember – Purine Purina is for animals and we are the AGgies• Adenine • Guanine
– Pyrimidines CUT the Pye• Cytosine• Uracil (RNA only)• Thymine (DNA only)