F7- Mb Plasmique Flashcards

1
Q

Ex prot associées aux mb

  • N-myristoylation
  • Palmitoylation
  • Isoprenylation
  • Ancre GPI
A
  • N-myristoylation: Galpha, src
  • Palmitoylation:Caveoline
  • Isoprenylation: ras(inhibiteur farsenyl-transferase empeche la localisation de ras à la mb)
  • Ancre GPI: prot PrPc, Isoforme NCAM
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2
Q

Fonctions des glucides membranaires

A
  • Protection mécanique
  • Gp sanguins: système ABO des erythrocytes
  • Reconnaissance:virus,cellules et toxines
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3
Q

Localisation glut 1,2,3,4,5

A
Glut 1: GR
Glut 2: intestin, foie, rein
Glut 3: neurone
Glut 4: tissu adipeux, muscle
Glut5: intestin
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4
Q

Composition lipide en fct des mb

A

Cholesterol
MbP>MbMe>MbMi

Sphingolipide
MbP>MbMe>MbMi

PC
MbMi>MbMe>MbP

PE
MbMe>MbMi>MbP

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