AMINO ACIDS Flashcards

1
Q

pH below pKa

A

Largely Protonated

Net charge +1

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2
Q

pH above pKa

A

Largely Deprotonated

Net charge -1

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3
Q

pH near pKa

A

Mix of two forms

Carboxyl group deprotonated

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4
Q

pI

A

Average of pKa’s

No net charge here

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5
Q

Aliphatic Aminos

A

Gly, Ala, Leu, Ile, Val

pKa appx. 2.3, 9.8

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6
Q

Hydroxyl Aminos

A

Ser, Thr, Tyr

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7
Q

Sulfur Aminos

A

Met, Cys, Sec

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8
Q

Acidic Aminos

A

Asp, Glu

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9
Q

Amide Aminos

A

Asn (N), Gln (Q)

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10
Q

Basic Aminos

A

Arg, Lys, His

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11
Q

Aromatic Aminos

A

His, Phe, Tyr, Trp

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12
Q

Imino Acid

A

Pro

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13
Q

Hydrophobic Aminos

A

Gly, Ala, Leu, Ile, Val

Phe, Tyr, Trp, His

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14
Q

Hydrophilic

A

Asn, Gln, Pro
Ser, Thr, Tyr
Arg, Lys, Asp, Glu, His
Met, Cys, Sec

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15
Q

Bacitracin

A

D-amino. Inhibit the entry to the AIDS virus HIV-1 into cells.

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