June 03, 2005

Amino-acid classification terminology

[Biology_] Meanings of some biochemical terms used to classify amino acids.

Aliphatic - carbon only chain
ala, val, ile, leu, pro?, gly?
Aromatic - carbon ring
phe, tyr, trp
Hydroxyl - carbon chain ends with OH
ser, thr, tyr?
Amide - carbon chain ends with NH2
asn, gln
Basic - carbon chain ends with NHx+
lys, arg, his?
Acidic - carbon chain ends with O-
asp, glu
Sulphur - carbon chain ends with S
cys, met


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