Amino Acids Flashcards Preview

BMS > Amino Acids > Flashcards

Flashcards in Amino Acids Deck (20):
1

Lysine
K
Lys

Pka= 10
Positively Charged at phys pH

2

Arginine
Arg
R

PKA=12
Positively charged
Guadidium group

3

Histidine
His
H

Pka ~6, depends on local environment
Can be positively charged, depends on local environment

4

Aspartic Acid (aspartate)
Asp
D

Negatively charged
Pka=4

5

Glutamic acid
Glu
E

Negatively charged
Pka=4

6

Serine
Ser
S

-OH group replaces one of h bonds in Me side chain
Polar uncharged

7

Threonine
Thr
T

OH group on first me group
Polar uncharged

8

Tyrosine
Y
Tyr

Phenylalanine but with OH group replacing one of Hs in benzene group
Polar, uncharged

9

Asparginine
Asn
N

Has an amide group
Polar, uncharged

10

Glutamine
Q
Gln

Has an amide group just like arginine but Glu is longer
Polar uncharged

11

Cysteine
Cys
C

Has a sulfur group that likes to form sulfide bonds in oxidized environments

12

Glycine
Gly
G

The only achiral amino acid
Good in turns because it's so small.

13

Leucine
Leu
L

Large methyl group
Non polar

14

Alanine
Ala
A

Non polar
Just a methyl group

15

Methionine
Met
M

Inert sulfur group, hidden by hydrocarbons
Nonpolar

16

Isoleucine
Iso
I

Just like leucine but methyl on the second group
Nonpolar

17

Valine
Val
V

Makes a v shape.
Nonpolar uncharged

18

Phenylalanine
Phe
F

Alanine with a phenyl group

19

Tryptophan
Trp
W

Bulky rings, 2 of them

20

Proline
Pro
P

Good for rigidifying proteins
Forms imino groups with aa backbone (the amine part)