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Biochemistry > Amino Acids > Flashcards

Amino Acids Flashcards

1
Q

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

Alanine

A

A, Ala

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2
Q

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

Tyrosine

A

Y, Tyr

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3
Q
A

Alanine

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3
Q
A

Leucine

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3
Q

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

Arginine

A

R, Arg

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3
Q

How would you describe Tyrosine?

A

Aromatic (Hydrophobic)

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4
Q
A

Cysteine

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5
Q

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

Isoleucine

A

I, Ile

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5
Q

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

A

Cysteine (C, Cys), 8.3

Lysine (K, Lys), 10.0

Tyrosine (Y,Tyr), 10.1

Arginine (R, Arg) 12.5

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5
Q

How would you describe Proline?

A

Cyclic

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6
Q

How would you describe Isoleucine?

A

Aliphatic

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6
Q

How would you describe Cysteine?

A

Hydrophilic

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7
Q
A

Tyrosine

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8
Q

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

Valine

A

V, Val

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8
Q

How would you describe Glutamic Acid?

A

Negative at physiological pH, Hydrophilic

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9
Q

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

Threonine

A

T, Thr

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11
Q

How would you describe Lysine?

A

Positive, Polar (hydrophilic)

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12
Q

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

Histidine

A

H, His

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12
Q

How would you describe Methionine?

A

Hydrophobic

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13
Q

How would you describe Glutamine?

A

Neutral, Polar (hydrophilic)

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14
Q

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

Glutamic Acid

A

E, Glu

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15
Q
A

Phenylalanine

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16
Q
A

Valine

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17
Q

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

Phenylalanine

A

F, Phe

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18
Q

How would you describe Glycine?

A

Aliphatic

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19
Q
A

Histidine

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20
Q

How would you describe Aspartic Acid?

A

Negative at physiological pH, Hydrophilic

21
Q

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

Glycine

A

G, Gly

22
Q
A

Glycine

23
Q
A

Serine

24
Q

How would you describe Arginine?

A

Positive, Polar (hydrophilic)

26
Q

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

Aspartic Acid

A

D, Asp

27
Q

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

Serine

A

S, Ser

28
Q

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

A

Cysteine, Histidine, Glutamic Acid, Aspartic Acid

29
Q

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

Glutamine

A

Q, Gln

30
Q

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

A

Lysine, Tyrosine, Arginine

31
Q
A

Threonine

31
Q

How would you describe Valine?

A

Aliphatic

32
Q
A

Tryptophan

33
Q

How would you describe Asparagine?

A

Neutral, Polar (hydrophilic)

34
Q

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

Cysteine

A

C, Cys

35
Q

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

Methionine

A

M, Met

36
Q
A

Arginine

37
Q

How would you describe Leucine?

A

Aliphatic

38
Q

How would you describe Serine?

A

Hydrophilic

40
Q
A

Glutamic Acid

42
Q
A

Aspartic Acid

43
Q

How would you describe Tryptophan?

A

Aromatic (Hydrophobic)

45
Q
A

Glutamine

46
Q

How would you describe Phenylalanine?

A

Aromatic (Hydrophobic)

48
Q
A

Asparagine

50
Q

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

Lysine

A

K, Lys

52
Q

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

Proline

A

P, Pro

53
Q
A

Isoleucine

54
Q

How would you describe Threonine?

A

Hydrophilic

56
Q

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

Asparagine

A

N, Asn

57
Q
A

Lysine

58
Q

How would you describe Alanine?

A

Aliphatic

59
Q

How would you describe Histidine?

A

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

60
Q

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

A

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

61
Q
A

Methionine

62
Q

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

Tryptophan

A

W, Trp

63
Q
A

Proline

64
Q

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

A

Aspartic Acid (D, Asp) 3.9

Glutamic Acid (E, Glu) 4.2

Histidine (H, His) 6.0

65
Q

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

Leucine

A

L, Leu

Biochemistry (9 decks)

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