amino acids Flashcards
1
Q
Alanine
A
- Ala
- non-polar hydrophobic
2
Q
valine
A
- non polar hydrophobic
- aliphatic
- highly hyrdophobic
- Val
3
Q
Leucine
A
- Leu
- aliphatic
- non-polar hydrophobic
4
Q
isolucine
A
- Ile
- aliphatic
- non polar highly hydrophobic
5
Q
phenylalanine
A
- Phe
- aromatic
- non polar hydrophobic
6
Q
trytophan
A
- Trp
- aromatic, heterocyclic, bulky
- H-bond donor
- non-polar hydrophobic
7
Q
methionine
A
- “honourary aliphatic
- Met
- thioether
- non polar hydrophobic
8
Q
proline
A
- Pro
- distinctive cuclic
- secondary amino group
- non polar hydrophobic
9
Q
glycine
A
- Gly
- achiral
- wealky polar
- small and flexible
- polar uncharged
10
Q
serine
A
- Ser
- polar uncharged
- hydroxyl group = H-bond donor
- can be modified
11
Q
threonine
A
- Thr
- OH group = typically H-bond donor
- phosphorylated
- polar uncharged
12
Q
Tyrosine
A
- weakly polar
- polar uncharged
- OH grp = typically H-bond donor
- can be phosphorylated
- pKA = ~10.5
13
Q
cysteine
A
- Cys
- polar uncharged
- SH can form H-bonds
- can form S- (thiolate anions)
- disulphide bonds with another cys; in oxidizing envionemtns (not cytosolic)
- create cross links
- pKa = 8.5
14
Q
Asparagine
A
- Asn
- polar uncharged
- forms H-bonds; NH2 donor, C=O acceptor
15
Q
Glutamine
A
- Gln
- polar uncharged
- carboxamine
- H-bonds; NH2, donor C=O accpetor
