Topic 2 - Amino Acids Flashcards Preview

Biochem 153A > Topic 2 - Amino Acids > Flashcards

Flashcards in Topic 2 - Amino Acids Deck (28):
1

Non Polar

Glycine/Gly/G

Alanine/Ala/A

Valine/Val/V

Leucine/Leu/L

Isoleucine/Ile/I

Methionine/Met/M

Proline/Pro/P

(GAVLIMP)

2

Aromatic

Phenylalanine/Phe/F

Tryptophan/Trp/W

Tyrosine/Tyr/Y (pKa = 10)

(PTT/FWY)

3

Polar, Uncharged

Cysteine/Cys/C (pKa = 8.5)

Serine/Ser/S (pKa = 13)

Threonine/Thr/T (pKa = 13)

Asparagine/Asn/N

Glutamine/Gln/Q

(CSTAG/CSTNQ)

 

4

Polar, Positively Charged (Basic)

Histidine/His/H (pKa = 6)

Arginine/Arg/R (pKa = 12.5)

Lysine/Lys/K (pKa = 10.5)

(HAL/HRK)

 

5

Polar, Negatively Charged (Acidic)

Aspartic Acid/Aspartate/Asp/D (pKa = 4)

Glutamic Acid/Glutamate/Glu/E (pKa = 4)

(DE)

6

Glycine

Glycine

Gly

G

(Non Polar)

7

Alanine

Alanine

Ala

A

(Non Polar)

8

Valine

Valine

Val

V

(Non Polar)

9

Leucine

Leucine

Leu

L

(Non Polar)

10

Isoleucine

Isoleucine

Ile

I

(Non Polar)

11

Methionine

Methionine

Met

M

(Non Polar)

12

Proline

Proline

Pro

P

(Non Polar)

13

Phenylalanine

Phenylalanine

Phe

F

(Aromatic)

14

Tryptophan

Tryptophan

Trp

W

(Aromatic)

15

Tyrosine

Tyrosine

Tyr

Y

(Aromatic)

pKa = 10

16

Serine

Serine

Ser

S

(Polar, Uncharged = OH)

pKa = 13

17

Threonine

Threonine

Thr

T

(Polar, Uncharged = OH)

pKa = 13

18

Asparagine

Asparagine

Asn

N

(Polar, Uncharged = NH2)

19

Glutamine

Glutamine

Gln

Q

(Polar, Uncharged = NH2)

20

Histidine

Histidine

His

H

(Polar, Charged = NH+)

pKa = 6

21

Arginine

Arginine

Arg

R

(Polar, Charged = NH2+)

pKa = 12.5

22

Lysine

Lysine

Lys

K

(Polar, Charged = NH3+)

pKa = 10.5

23

Aspartic Acid

Aspartic Acid

Asp

D

(Polar, Charged = COO-)

pKa = 4

24

Glutamic Acid

Glutamic Acid

Glu

E

(Polar, Charged = COO-)

pKa = 4

25

a-Carboxyl of free amino acid

a-Carboxyl of free amino acid

-COOH

pKa = 2

26

C-terminal carboxyl

C-terminal carboxyl

-COOH

pKa = 3

27

N-terminal amino group

N-terminal amino group

-NH3

pKa = 8

28

a-Amino of free amino acid

a-Amino of free amino acid

-NH3

pKa = 9.5