amino acids Flashcards
1
Q
A
alanine (ala)
2
Q
A
valine (val)
3
Q
A
leucine (leu)
4
Q
A
isoleucine (ile)
5
Q
A
phenylalanine (phe)
6
Q
A
tryptophan (trp)
7
Q
A
methionine (met)
8
Q
A
proline (pro)
9
Q
A
glycine (gly)
10
Q
A
serine (ser)
11
Q
A
threonine (thr)
12
Q
A
tyrosine (tyr)
pka 10.5
13
Q
A
cysteine (cys)
pka 8.5
14
Q
A
asparagine (asn)
15
Q
A
glutamine (gln)
16
Q
A
histidine (his)
pka 6.0
17
Q
A
aspartate (asp)
pk 4.0
negavite R at PH 7
18
Q
A
glutamate (glu)
pka 4
19
Q
A
lysine (lys)
pka 10
20
Q
A
arginine (arg)
pka too high
never deprotinated under physiological conditions
21
Q
what is the only achiral amino acid?
A
glycine
