Lecture 3: Amino Acids Flashcards

1
Q
A

Glycine (Gly, G)

Hydrophobic

Non-essential

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2
Q
A

Alanine (Ala, A)

Hydrophobic

Non-essential

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3
Q
A

Proline (Pro, P)

Hydrophobic

Non-essential

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4
Q
A

Valine (Val, V)

Hydrophobic

Essential

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5
Q
A

Leucine (Leu, L)

Hydrophobic

Essential

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6
Q
A

Isoleucine (Ile, I)

Hydrophobic

Essential

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7
Q
A

Methionine (Met, M)

Hydrophobic

Essential

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8
Q
A

Phenylalanine (Phe, F)

Hydrophobic

Essential

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9
Q
A

Tryptophan (Trp, W)

Hydrophobic

Essential

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10
Q
A

Serine (Ser, S)

Polar

Non-essential

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11
Q
A

Threonine (Thr, T)

Polar

Essential

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12
Q
A

Tyrosine (Tyr, Y)

Polar

Non-essential

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13
Q
A

Asparagine (Asn, N)

Polar

Non-essential

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14
Q
A

Glutamine (Gln, Q)

Polar

Non-essential

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15
Q
A

Cysteine (Cys, C)

Polar

Non-essential

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16
Q
A

Lysine (Lys, K)

Polar

Essential

17
Q
A

Arginine (Arg, R)

Polar

Essential

18
Q
A

Histidine (His, H)

Polar

Essential

19
Q
A

Aspartate (Asp, D)

Polar

Non-essential

20
Q
A

Glutamate (Glu, E)

Polar

Non-Essential

21
Q

Typical pKa?

Terminal alpha-carboxyl group

Aspartic acid, Glutamic acid

A
  1. 1
  2. 1
22
Q

Typical pKa?

Histidine

A

6.0

23
Q

Typical pKa?

Terminal alpha-amino group

A

8.0

24
Q

Typical pKa?

Cysteine

A

8.3

25
Q

Typical pKa?

Tyrosine

A

10.9

26
Q

Typical pKa?

Lysine

A

10.8

27
Q

Typical pKa?

Arginine

A

12.5