aimno acids Flashcards
1
Q
Asp
A
aspartate, polar (aspartic acid-acid polar)
2
Q
Glu
A
Glutamate, polar (glutamic acid-acid polar)
3
Q
Tyr
A
Tyrosine, uncharged polar
4
Q
Asn
A
Asparagine, uncharged polar
5
Q
Gln
A
Glutamine, uncharge polar
6
Q
Trp
A
Tryptophan, nonpolar
7
Q
Cys
A
Cystein, uncharged polar
8
Q
His
A
Histidine, basic polar
9
Q
Ile
A
Isoleucine, nonpolar
10
Q
Met
A
Methionine, nonpolar
11
Q
Ser
A
Serine, uncharged polar
12
Q
Val
A
Valine, nonpolar
13
Q
Ala
A
Alanine, nonpolar
14
Q
Gly
A
Glycine, nonpolar
15
Q
Leu
A
Leucine, nonpolar
16
Q
Pro
A
Proline, nonpolar
17
Q
Thr
A
Threonine, uncharged polar
18
Q
Arg
A
Arginine, Basic Polar
19
Q
Phe
A
Phenylalanine, nonpolar
20
Q
Lys
A
Lysine, basic polar
21
Q
Nonpolar Amino Acids
A
alanine Glycine Isoleucine Leucine Methionine Phenylalanine Proline Tryptophan Valine
9
22
Q
uncharged Polar amino acids
A
asparagine cysteine glutamine serine threonine tyrosine
6
23
Q
Acidic polar amino acids
A
Aspartic acid
glutamic acid
24
Q
Basic polar amino acids
A
arginine
histidine
lysine
25
What is special about methionin and tryptophan?
nonpolar amino acids who have something other than just carbon and hydrogen in the R group. Tryptophan has nitrogen, methionin has 1 sulfur group
26
Maple Syrup Urine Disease
when the breakdown of Isoleucine, leucine, and valdine is disrupted. They are branched chain amino acids.
27
What is special about phenylalanine
During normal catabolism, it is broken down into tyrosine. Patients with a defective step in this pricess suffer from PKU, can cause retardation
28
What is special about tryptophan?
it is the precursor for serotonin, which serves as an important neurotransmitter with roles in pain perception, regulation of sleep, appetite, temperature, blood pressure, cognitive functions, and mood.
29
What is important about glycine
Found in collagen, 1st in sequence of 3. has the smallest R group. If it gets substituted by another amino acid, the resulting bulkier R group disrupts the normal collagen structure, this is called osteogenesis imperfecta. can cause brittle bones
30
What is special about proline?
cyclic, rigid
31
What is special about methionine?
serves as a methyl group donor in many methylation reactions in biochemistry
32
What contributes to the overall charge on a polypeptide?
Charged amino acids
33
What amino acids MAY be phisphorylated?
Serine, Threonine, and Tyrosine
34
What is tyrosine a precurosor for?
catecholamines
