Acides Aminés Flashcards

1
Q

Acides aminés hydrophobes

A

GAVPLIF WM

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2
Q

Acides aminés hydrophyles

A

STYNCQ

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3
Q

Acides aminés acides, chargés négativement

A

Aspartate D

Glutamate E

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4
Q

Acides aminés basiques chargés positivement

A

Lysine K
Arginine R
Histidine H

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5
Q

Acides aminés ionisables

A

Acide: Aspartate D, glutamate E
Basique: Lysine K, Arginine R, Histidine H
Autres régules par pKR: Cysteine C, Tyrosine Y

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6
Q

Quelle charge a un AA si son pH esf inférieur au pHi?

A

Positive
A1+ ————-> A0 ———–> A1-
Cationique/switterion/anionique

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7
Q

3 Clivages spécifiques chimiques

A
  1. Bromure de cyanogene KCN: après M
  2. Acide 2-nitro-5-thiocyanobenzoïque: avant C
  3. Hydroxylamine: après N (motif N-G)
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8
Q

3 Clivages spécifiques enzymatiques

A
  1. Amino/Carboxy-exopeptidases: après 1er AA en N terminale et avant le dernier AA en C terminale
  2. Trypsine: après K ou R, sauf si suivis de P
  3. Chymotrypsine: après F, Y ou W
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9
Q

Quel type d’acides aminés absorbent dans l’UV?

A

Les aromatiques

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10
Q

Quel acide aminé peut subir une hydroxylation?

A

La proline

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11
Q

Quels Acides aminés peuvent subir une phosphorylation?

A

S
Y
T

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12
Q

Quel acide aminé peut subir une n-glycosylation?

A

L’asparagine

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13
Q

Quels acides aminés peuvent subir une méthylation?

A

Lysine K

Aspartate E

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14
Q

Quel acide aminé peut subir une acétylation?

A

Lysine K

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