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biocell > moteurs protéiques > Flashcards

moteurs protéiques Flashcards

1
Q

rôle

A

marche sur filaments polaires (actine F + MT)

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2
Q

principes

A
  1. coordination entre changement conformation + lisaison réversible filament
  2. spécificité moteurs
  3. direction du mpteur
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3
Q

types

A

myosine
kinésine
dynéine

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4
Q

myosine

A

actine
vers +
contraction musculaire
transport vésicules + organites

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5
Q

kinésine

A

microtubules
vers +
transport vésiculaires
mouvement chromosomes mitotiques

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6
Q

dynéine

A

microtubules
vers -
transport vésiculaires
mouvement chromosomes mitotiques
mouvement flagelle

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7
Q

caractéristiques

A
  1. lie cytosquelete avec tête globulaire
  2. besoin hydrolyse ATP (ATPase)
  3. hydro ATP = changement conf = avance moteur
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biocell (48 decks)

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