The 20 common amino acids appear to be a good thing to use an a-z list for.
non-polar (hydrophobic)
glycine gly
alanine ala
valine val
leucine leu
isoleucine ile
methionnine met
phenelynine phe
tryptophan trp
proline pro
polar (hydophillic)
serine ser
threonine thr
cysteine cys
tyrasine tyr
asparagine asn
glutamine gln
charged - acidic
aspartic acid asp
glutamic acid glu
charged - basic
lyseine - lys
argenine arg
histidine his
