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10 Cards in this Set
- Front
- Back
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Name the non-polar amino acids.
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Glycine, Alanine, Valine
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Name the polar amino acids.
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Serine, Threonine.
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Name the aromatic amino acids
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Phenylalanine, tyrosine, tryptophan
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Name the basic amino acids
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Lysine, Arginine
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Name the acid amino acids (negatively charged at neutral pH)
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Aspartate, Glutamate
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Name the carboxiamide amino acids (uncharged polar)
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Asparagine, Glutamine
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What aa's are polar with OH groups and why is this important?
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Serine, Threonine, Tyrosine. Important can be targeted for modification (eg.: glycosylation, phosphorylation)
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What are the 5 main roles of amino acid side chains?
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1) Active site residues
2) H bonding 3) Hydrophobic interactions 4) Modification 5) Other structural roles |
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Why are histidine and cysteine important in acid-base catalysis?
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Because their Pk1 are 6.0 and 8.3, respectively, which are within neutral pH in cell environment.
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What leads to PKU (phenylketonuria)?
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If there's a defect in enzyme or cofactor in converting phenylalanine to tyrosine, then phenylalanine forms other compounds that lead to mental retardation.
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