Module 1 Amino acids Flashcards

1
Q

Name the acidic amino acids

A

Glutamate, Aspartate

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2
Q

Name the basic amino acids

A

Arginine, Histidine, Lysine

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3
Q

Non polar aliphatic R groups

A

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

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4
Q

Aromatic groups

A

Phenylalanine, Tyrosine, Tryptophan

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5
Q

Polar uncharged R groups

A

Asparagine, Glutamine, Serine, Threonine, Cysteine

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6
Q

Glutamate Glu E

A

Acidic, CH2-CH2-COO sidechain, trigonal planar

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7
Q

Aspartate Asp D

A

Acidic, CH2-COO sidechain, trigonal planar

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8
Q

Histidine His H

A

Basic, CH2-(C-NH-CH=N-CH=) ring

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9
Q

Lysine Lys K

A

Basic, 4 CH2’s -NH2+

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10
Q

Arginine Arg R

A

Basic, 3CH2’s-C(NH2)=NH2+

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11
Q

Valine Val V

A

Non polar aliphatic, CH-2CH3’s

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12
Q

Proline Pro P

A

Non polar aliphatic, 3CH2’s-NH2+ ring

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13
Q

Leucine Leu L

A

Non polar aliphatic, CH2-CH-2CH3

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14
Q

Isoleucine LLE I

A

structural isomer and beta branched

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15
Q

Methionine Met M

A

2CH2-S-CH3, non polar aliphatic

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16
Q

Glycine Gly G

A

-H less steric clash, very flexible, non polar aliphatic

17
Q

Alanine Ala A

A

-CH3, non polar aliphatic

18
Q

Asparagine Asn N

A

polar, uncharged - CH2-C(NH2)=O

19
Q

Glutamine Gln Q

A

polar, uncharged 2CH2 - C(NH2)=O

20
Q

Serine Ser S

A

CH2-OH polar uncharged

21
Q

Threonine Thy T

A

CH(CH3)(OH) polar uncharged

22
Q

Cysteine Cys C

A

very reactive polar uncharged, CH2-SH, deprotonate at pH 7

23
Q

Phenylalanine Phe F

A

CH2-benzene aromatic UV

24
Q

Tyrosine Tyr Y

A

CH2-phenol aromatic UV

25
Tryptophan Trp W
CH2-C=CH-pentagon ring NH-hexagon (1 double bond in pentagon) (1 double bond in hexagon) aromatic UV
26
Which group detect proteins and act as protein probes
Aromatic
27
Oxidation of thiolates (SH) form
disulfide S-S bonds interchain and intrachain