Amino Acids Flashcards
1
Q
List the hydrophobic amino acids.
A
Alanine, valine, phenylalanine, tryptophan, leucine, isoleucine, methionine and proline.
2
Q
List the polar amino acids
A
Serine, threonine, tyrosine, cysteine, asparganine, glutamine, histidine and glycine.
3
Q
List the charged amino acids.
A
Aspartate, glutamate, lysine and arginine.
4
Q
Ala
A
alanine
5
Q
Val
A
valine
6
Q
Phe
A
phenylalanine
7
Q
Trp
A
tryptophan
8
Q
Leu
A
leucine
9
Q
Ile
A
isoleucine
10
Q
Met
A
methionine
11
Q
Pro
A
proline
12
Q
Ser
A
serine
13
Q
Thr
A
threonine
14
Q
Tyr
A
tyrosine
15
Q
Cys
A
cysteine
16
Q
Asn
A
asparganine
17
Q
Gln
A
glutamine
18
Q
His
A
histidine
19
Q
Gly
A
glycine
20
Q
Asp
A
aspartate
21
Q
Glu
A
glutamate
22
Q
Lys
A
lysine
23
Q
Arg
A
arginine
24
Q
Which 3 polar amino acids are ionizable (have pKa’s)?
A
Tyrosine, cysteine and histidine
25
What is the pKa of tyrosine (Tyr) R group?
10.5
26
What is the pKa of cysteine (Cys) R group?
8.5
27
What is the pKa of histidine (His) R group?
6.0
28
What is the pKa of aspartate (Asp) R group?
4.0
29
What is the pKa of glutamate (Glu) R group?
4.0
30
What is the pKa of lysine (Lys) R group?
10.5
31
What is the pKa of arginine (Arg) R group?
12.5
32
Alanine (Ala)
33
Valine (Val)
34
Leucine (Leu)
35
Isoleucine (Ile)
36
Phenylalanine (Phe)
37
Tryptophan (Trp)
38
Methionine (Met)
39
Proline (pro)
40
Glycine (Gly)
41
Serine (Ser)
42
Threonine (Thr)
43
Tyrosine (Tyr)
44
Cysteine (Cys)
45
Asparagine (Asn)
46
Glutamine (Gln)
47
Histidine (His)
48
Aspartate (Asp)
49
Glutamate (Glu)
50
Lysine (Lys)
51
Arginine (Arg)
52
Which amino acid can act as an acid or base around neutral pH?
Histidine
53
Which amino acid is important in many enzyme catalyzed reactions?
Histidine
