Amino Acids (11-20)

Question 1

M

Answer 1

Met (Methionine)
CH2-CH2-S-CH3

Question 2

D

Answer 2

Asp (Aspartate) pKa= 3.9
CH2-C (=O, –O-)

Question 3

E

Answer 3

Glu (Glutamate) pKa=4.3
CH2-CH2- C (=O, –O-)

Question 4

N

Answer 4

Asn (Asparagine)
CH2-C- (=O, -NH2)

Question 5

Q

Answer 5

Gln (Glutamine)
CH2-CH2-C- (=O, -NH2)

Question 6

K

Answer 6

Lys (Lysine) pKa= 10.5
CH2-CH2-CH2-CH2-NH3+

Question 7

R

Answer 7

Arg (Arginine) pKa=12.5
CH2-CH2-CH2-NH-C-(-NH2, =NH2+)

Question 8

H

Answer 8

His (Histidine) pKa= 6.0
CH2- Ring (5) (N, NH, 2 DB)

Question 9

G

Answer 9

Gly (Glycine)
H

Question 10

T

Answer 10

Thr (Threonine) pKa~ 13
CH (-OH, CH3)