Amino Acids Flashcards Preview

Biochemistry > Amino Acids > Flashcards

Flashcards in Amino Acids Deck (65):
1

Give the Single-Letter and Three-Letter Abbreviation for:

Alanine


A, Ala

2

Give the Single-Letter and Three-Letter Abbreviation for:

Tyrosine


Y, Tyr

3

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Alanine

3

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Leucine

3

Give the Single-Letter and Three-Letter Abbreviation for:

Arginine

R, Arg

3


How would you describe Tyrosine?


Aromatic (Hydrophobic)

4

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Cysteine

5

Give the Single-Letter and Three-Letter Abbreviation for:

Isoleucine

I, Ile

5

Of the Amino Acids with an ionizable side chain, list the four with the highest pKa along with their pKa

 Cysteine (C, Cys), 8.3

Lysine (K, Lys), 10.0

Tyrosine (Y,Tyr), 10.1

Arginine (R, Arg) 12.5

5


How would you describe Proline?

Cyclic

6


How would you describe Isoleucine?


Aliphatic

6


How would you describe Cysteine?

Hydrophilic

7

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Tyrosine

8

Give the Single-Letter and Three-Letter Abbreviation for:

Valine


V, Val

8


How would you describe Glutamic Acid?

Negative at physiological pH, Hydrophilic

9

Give the Single-Letter and Three-Letter Abbreviation for:

Threonine


T, Thr

11


How would you describe Lysine?

Positive, Polar (hydrophilic)

12

Give the Single-Letter and Three-Letter Abbreviation for:

Histidine


H, His

12


How would you describe Methionine?

Hydrophobic

13


How would you describe Glutamine?

Neutral, Polar (hydrophilic)

14

Give the Single-Letter and Three-Letter Abbreviation for:

Glutamic Acid

E, Glu

15

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Phenylalanine

16

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Valine

17

Give the Single-Letter and Three-Letter Abbreviation for:

Phenylalanine


F, Phe

18


How would you describe Glycine?


Aliphatic

19

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Histidine

20


How would you describe Aspartic Acid?

Negative at physiological pH, Hydrophilic

21

Give the Single-Letter and Three-Letter Abbreviation for:

Glycine


G, Gly

22

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Glycine

23

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Serine

24


How would you describe Arginine?

Positive, Polar (hydrophilic)

26

Give the Single-Letter and Three-Letter Abbreviation for:

Aspartic Acid


D, Asp

27

Give the Single-Letter and Three-Letter Abbreviation for:

Serine


S, Ser

28

Which Amino Acids have an ionizable side chain with a pKA that is lower than their amino group?


Cysteine, Histidine, Glutamic Acid, Aspartic Acid

29

Give the Single-Letter and Three-Letter Abbreviation for:

Glutamine


Q, Gln

30

Which Amino Acids have an ionizable side chain with a pKA that is higher than their amino group?

Lysine, Tyrosine, Arginine

31

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Threonine

31


How would you describe Valine?


Aliphatic

32

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Tryptophan

33


How would you describe Asparagine?

Neutral, Polar (hydrophilic)

34

Give the Single-Letter and Three-Letter Abbreviation for:

Cysteine


C, Cys

35

Give the Single-Letter and Three-Letter Abbreviation for:

Methionine


M, Met

36

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Arginine

37


How would you describe Leucine?


Aliphatic

38


How would you describe Serine?

Hydrophilic

40

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Glutamic Acid

42

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Aspartic Acid

43


How would you describe Tryptophan?


Aromatic (Hydrophobic)

45

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Glutamine

46


How would you describe Phenylalanine?


Aromatic (Hydrophobic)

48

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Asparagine

50

Give the Single-Letter and Three-Letter Abbreviation for:

Lysine


K, Lys

52

Give the Single-Letter and Three-Letter Abbreviation for:

Proline


P, Pro

53

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Isoleucine

54


How would you describe Threonine?

Hydrophilic

56

Give the Single-Letter and Three-Letter Abbreviation for:

Asparagine


N, Asn

57

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Lysine

58


How would you describe Alanine?


Aliphatic

59


How would you describe Histidine?

Positive (but close to neutral at physiological pH), Polar (hydrophilic)

60


List the Amino Acids that have an Ionizable Side Chain from Lowest pKa to Highest pKa

Aspartic Acid (D, Asp), Glutamic Acid (E, Glu), Histidine (H, His), Cysteine (C, Cys), Lysine (K, Lys), Tyrosine (Y,Tyr), Arginine (R, Arg)

61

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Methionine

62

Give the Single-Letter and Three-Letter Abbreviation for:

Tryptophan


W, Trp

63

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Proline

64


Of the Amino Acids with an ionizable side chain, list the three with the lowest pKa along with their pKa

Aspartic Acid (D, Asp) 3.9

Glutamic Acid (E, Glu) 4.2

Histidine (H, His) 6.0

65

Give the Single-Letter and Three-Letter Abbreviation for:

Leucine


L, Leu