Amino Acids Flashcards
Non-polar aliphatic amino acids
Glycine, Alanine, Valine, Leucine, Isoleucine, Methionine, Proline*
Aromatic amino acids
Phenylalanine, Tyrosine, Tryptophan
Polar uncharged amino acids
Serine, Threonine, Asparagine, Glutamine, Cysteine
Positively charged amino acids
Lysine, Argine, Histidine
Negatively charged amino acids
Aspartate, Glutamate
Abbreviate Glycine: (3-letter, 1-letter)
(Gly, G)
Abbreviate Alanine: (3-letter, 1-letter)
(Ala, A)
Abbreviate Valine: (3-letter, 1-letter)
(Val, V)
Abbreviate Leucine: (3-letter, 1-letter)
(Leu, L)
Abbreviate Isoleucine: (3-letter, 1-letter)
(Ile, I)
Abbreviate Methionine: (3-letter, 1-letter)
(Met, M)
Abbreviate Proline: (3-letter, 1-letter)
(Pro, P)
Abbreviate Phenylalanine: (3-letter, 1-letter)
(Phe, F)
Abbreviate Tyrosine: (3-letter, 1-letter)
(Tyr, Y)
Abbreviate Tryptophan: (3-letter, 1-letter)
(Trp, W)
Abbreviate Serine: (3-letter, 1-letter)
(Ser, S)
Abbreviate Threonine: (3-letter, 1-letter)
(Thr, T)
Abbreviate Asparagine: (3-letter, 1-letter)
(Asn, N)
Abbreviate Glutamine: (3-letter, 1-letter)
(Gln, Q)
Abbreviate Cysteine: (3-letter, 1-letter)
(Cys, C)
Abbreviate Lysine: (3-letter, 1-letter)
(Lys, K)
Abbreviate Arginine: (3-letter, 1-letter)
(Arg, R)
Abbreviate Histidine: (3-letter, 1-letter)
(His, H)
Abbreviate Aspartate: (3-letter, 1-letter)
(Asp, D)
Abbreviate Glutamate: (3-letter, 1-letter)
(Glu, E)
What is the dimer of cysteine?
Cystine
What is special about Histidine?
It has a pKa close to neutral/physiological pH, which means that it is found as both a weak acid and a conjugate base, and is often near active sites of enzymes.
