Amino Acids Flashcards Preview

Biochem 200 > Amino Acids > Flashcards

Flashcards in Amino Acids Deck (53)
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1
Q

List the hydrophobic amino acids.

A

Alanine, valine, phenylalanine, tryptophan, leucine, isoleucine, methionine and proline.

2
Q

List the polar amino acids

A

Serine, threonine, tyrosine, cysteine, asparganine, glutamine, histidine and glycine.

3
Q

List the charged amino acids.

A

Aspartate, glutamate, lysine and arginine.

4
Q

Ala

A

alanine

5
Q

Val

A

valine

6
Q

Phe

A

phenylalanine

7
Q

Trp

A

tryptophan

8
Q

Leu

A

leucine

9
Q

Ile

A

isoleucine

10
Q

Met

A

methionine

11
Q

Pro

A

proline

12
Q

Ser

A

serine

13
Q

Thr

A

threonine

14
Q

Tyr

A

tyrosine

15
Q

Cys

A

cysteine

16
Q

Asn

A

asparganine

17
Q

Gln

A

glutamine

18
Q

His

A

histidine

19
Q

Gly

A

glycine

20
Q

Asp

A

aspartate

21
Q

Glu

A

glutamate

22
Q

Lys

A

lysine

23
Q

Arg

A

arginine

24
Q

Which 3 polar amino acids are ionizable (have pKa’s)?

A

Tyrosine, cysteine and histidine

25
Q

What is the pKa of tyrosine (Tyr) R group?

A

10.5

26
Q

What is the pKa of cysteine (Cys) R group?

A

8.5

27
Q

What is the pKa of histidine (His) R group?

A

6.0

28
Q

What is the pKa of aspartate (Asp) R group?

A

4.0

29
Q

What is the pKa of glutamate (Glu) R group?

A

4.0

30
Q

What is the pKa of lysine (Lys) R group?

A

10.5

31
Q

What is the pKa of arginine (Arg) R group?

A

12.5

32
Q
A

Alanine (Ala)

33
Q
A

Valine (Val)

34
Q
A

Leucine (Leu)

35
Q
A

Isoleucine (Ile)

36
Q
A

Phenylalanine (Phe)

37
Q
A

Tryptophan (Trp)

38
Q
A

Methionine (Met)

39
Q
A

Proline (pro)

40
Q
A

Glycine (Gly)

41
Q
A

Serine (Ser)

42
Q
A

Threonine (Thr)

43
Q
A

Tyrosine (Tyr)

44
Q
A

Cysteine (Cys)

45
Q
A

Asparagine (Asn)

46
Q
A

Glutamine (Gln)

47
Q
A

Histidine (His)

48
Q
A

Aspartate (Asp)

49
Q
A

Glutamate (Glu)

50
Q
A

Lysine (Lys)

51
Q
A

Arginine (Arg)

52
Q

Which amino acid can act as an acid or base around neutral pH?

A

Histidine

53
Q

Which amino acid is important in many enzyme catalyzed reactions?

A

Histidine