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Flashcards in amino acids quiz Deck (66)
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1

essential amino acids

L,I,V,H,K,M, F,T,W

2

neutral amino acids

S,T,C,Y,N,Q

3

thiol containing AA

cysteine

4

sulfide containing AA

methionine

5

contains phenolic group

tyrosine

6

can be found at the surface of the cell
hydrophilic and polar

tyrosine

7

contains an amido group at the beta carbon

asparagine

8

contains an amido group at the gamma carbon

glutamiine

9

neutral nonpolar

G,A,L,V,I,M,P,F,W

10

simplest AA because it contains 2 H

glycine

11

the only optically inactive AA

glycine

12

AA containing a methyl group

alanine

13

AA containing an isopropyl group

valine

14

AA containing isobutyl group

leucine

15

AA containing sec-butylgroup

isoleucine

16

beta-branched AA

V, L, I

17

contains an imino acid
cyclic but not aromatic

proline

18

has a phenyl ring

phenylalanine

19

contains an indole ring

tryptophan

20

acidic amino acids

D, E

21

Basic amino acids

H, K, R

22

has a primary amine
epsilon amino group

lysine

23

has a guanidinium ion

arginine

24

out of the 19 AA, what is the config of th 18 AA

S-configuration (counterclockwise)

25

AA with R config

cysteine

26

most hydrophobic AA

isoleucine

27

least hydrophobic

proline

28

if pH > pKa, ionizable group will be

DEprotonated

29

if pH < pKa, ionizable group will be

protonated

30

if pH = pKa, ionizable group will be

mixture of protonated and deprotonated forms
zwitterion

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