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20 Cards in this Set
- Front
- Back
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alanine ala, A
Neutral Non-polar Hydrophobic amino acid |
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glycine gly,G
Hydrophobic amino acid Neutral Non-polar |
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isoleucine ile,I
Hydrophobic amino acid Neutral Non-polar |
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leucine leu,L
Hydrophobic amino acid Neutral Non-polar |
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proline pro,P
Hydrophobic amino acid Neutral Non-polar cyclic |
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valine val,V
Hydrophobic amino acid Neutral Non-polar |
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lysine lys,K
long sidechain +amino group • Humans cannot synthesize it – obtain from diet. • In expts on animals – kept on cereal-based diet – inadequate dietary lysine increased stress-induced anxiety. • Recent research in humans shows may be true for us too. |
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histidine his,H
Basic, Polar imidazole group aromatic ring Histidine’s imidazole side chain can be uncharged or positively charged at neutral pH. • Histidine found at active sites of many enzymes that require a proton donor or proton acceptor. |
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Tryptophan Trp,W
Aliphatic side chains Neutral Slightly polar Hydrophobic amino acid |
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tyrosine Try,y polar
OH hydroxyl Makes these polar amino acids very hydrophilic and reactive |
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cysteine Cys,C polar
SH sulfhydryl or thiol 2 Cys can form Disulfide bond S – S |
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serine Ser, S polar
OH hydroxyl Makes these polar amino acids very hydrophilic and reactive |
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threonine Thr , T polar
OH hydroxyl Makes these polar amino acids very hydrophilic and reactive |
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Arginine Arg,R postive amino acid
long sidechain + guanidinium group Basic Polar |
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aspargine Asn,N polar neutral
carboxyamide |
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glutamate gle,E acidic
negativilly charged aamino acid |
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phenylalanine Phe, F
Alphatic side chain aromatic Hydrophobic amino acids neutral |
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methionine Met, M neutral non polar
Hydrophobic amino acids thioether/ sulfide C – S – C |
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glutamine Gln, Q neutral polar
carboxyamide |
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aspartate Asp, D
negativlly charged amin acid |
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