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Biochem > Amino Acids > Flashcards

Amino Acids Flashcards

1
Q

Alanine abbrv.

A

A, Ala

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2
Q

Arginine abbrv.

A

R, Arg

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3
Q

Asparagine abbrv.

A

N, Asn

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4
Q

Aspartic Acid abbrv.

A

D, Asp

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5
Q

Cysteine abbrv.

A

C, Cys

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6
Q

Glutamine abbrv.

A

Q, Gln

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7
Q

Glutamic Acid abbrv.

A

E, Glu

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8
Q

Glycine abbrv.

A

G, Gly

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9
Q

Histidine abbrv.

A

H, His

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10
Q

Isoleucine abbrv.

A

I, Ile

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11
Q

Leucine abbrv.

A

L, Leu

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12
Q

Lysine abbrv.

A

K, Lys

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13
Q

Methionine abbrv.

A

M, Met

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14
Q

Phenylalanine abbrv.

A

F, Phe

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15
Q

Proline abbrv.

A

P, Pro

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16
Q

Serine abbrv.

A

S, Ser

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17
Q

Threonine abbrv.

A

T, Thr

18
Q

Tryptophan abbrv.

A

W, Trp

19
Q

Tyrosine abbrv.

A

Y, Tyr

20
Q

Valine abbrv.

A

V, Val

21
Q

What is the difference bw aromatic and aliphatic

A

Aromatic contains benzene rings and aliphatic doesn’t

22
Q

What does a benzene ring look like

A

Closed ring of 6 carbons alternating double and single bonds

23
Q

Which amino acids are alpha helix breakers

A

Proline (P), and glycine (G)

24
Q

Acidic + negatively charged amino acids

A

Aspartate (D), Glutamate (E)

25
Q

Basic + positively charged amino acids

A

Histidine (H), Arginine (R), Lysine (K)

26
Q

Which amino acids absorb UV light

A

Tryptophan (W), Tyrosine (Y), Phenylalanine (F)

27
Q

Which amino acids contain sulphur

A

Methionine and Cysteine

28
Q

Which amino acid is the only one that can form disulfide bridges

A

Cysteine

29
Q

What is the only flexible achiral amino acid

A

Glycine

30
Q

What does achiral mean

A

The mirror image is the same as the regular

31
Q

Which amino acids have OH- groups/phosphorylatable

A

Serine (S). Threonine (T), Tyrosine (Y)

32
Q

What does having an OH group/alcohol allow for

A

It allows the amino acids to be phosphorylated by protein kinases

33
Q

Why is Proline an alpha helix breaker

A

It has a secondary amine group and no amide proton which means it can’t form hydrogen bonds

34
Q

Aromatic amino acids

A

Tryptophan (W), Phenylalanine (F), Tyrosine (Y)

35
Q

Nonpolar, hydrophobic, and aliphatic amino acids

A

Valine, Isoleucine, Proline, Glycine, Leucine, Alanine, Methionine

36
Q

Polar uncharged amino acids

A

Serine, Threonine, Tyrosine, Asparagine, Cysteine, Glutamine

37
Q

What is Tryptophan a precursor for

A

Serotonin biosynthesis

38
Q

What is Tyrosine a precursor for

A

Dopamine, epinephrine, norepinephrine biosynthesis

39
Q

Which amino acids are ketogenic

A

Leucine and lysine

40
Q

What does ketogenic mean

A

Converted to ketone bodies

41
Q

Which amino acid acts as a physiological buffer and why

A

Histidine due to pK

Biochem (5 decks)

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