Amino Acids Flashcards
1
Q
Cysteine
A
Cys
Polar, uncharged
2
Q
Histidine
A
His
Polar, basic
3
Q
Isoleucine
A
Ile
Non polar
4
Q
Methionine
A
Met
Non polar
5
Q
Serine
A
Ser
Polar uncharged
6
Q
Valine
A
Val
Nonpolar
7
Q
Alanine
A
Ala
Nonpolar
8
Q
Glycine
A
Gly
Nonpolar
9
Q
Leucine
A
Leu
Non polar
10
Q
Proline
A
Pro
Non polar
11
Q
Threonine
A
Thr
Polar uncharged
12
Q
Arginine
A
Arg
Polar, basic
13
Q
Asparagine
A
Asn
Polar, uncharged
14
Q
Aspartate
A
Asp
Polar, acidic
15
Q
Glutamate
A
Glu
Polar, acidic
16
Q
Glutamine
A
Gln
Polar, uncharged
17
Q
Phenylalanine
A
Phe
Non polar
18
Q
Tyrosine
A
Tyr
Polar, uncharged
19
Q
Tryptophan
A
Trp
Non polar
20
Q
Lysine
A
Lys
Polar basic
21
Q
What is the precursor for serotonin?
A
Tryptophan
22
Q
What is the precursor for histamine?
A
Histadine
23
Q
What is the precursor for catecholamines?
A
Tyrosine
24
Q
What are the branched chain amino acids?
A
Isoleucine, leucine, and valine
25
The breakdown of which amino acid is defective in PKU?
Phenylalanine to tyrosine
26
Which AA can participate in phosphorylation and which functional group participates?
Serine, threonine, and tyrosine
| Hydroxyl group
27
What AA has a sulfhydryl group?
| Two of these AA produce what type of bond through oxidation?
Cysteine
| Disulfide bond
28
Which AA is often a methyl group donor?
Methionine
29
What amino acids are involved in N-linked glycosidic bonds?
| O-linked?
Asparagine
| Serine or threonine
30
Which AA are abundant in histones?
Arginine and lysine (+charged)
31
What are the 4 types of bonds present in tertiary structure of proteins
Ionic, Nonpolar interactions, Disulfide, and hydrogen
