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Bio cell > Cytosquelette > Flashcards

Cytosquelette Flashcards

1
Q

Gamma-TuRC

A

Centrosome -> polymérisation/nucléation

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2
Q

Tips (capuchon tubuline-GTP)

A

Polymérisation microtubule + lien avec d’autres structures

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3
Q

Stathmine

A

Lie tubuline libre : diminue polymérisation

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4
Q

Kinésine 13

A

Augmente dépolymérisation microtubule, augmente dynamisme

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5
Q

Katanine

A

Chop en deux microtubules

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6
Q

XMAP215

A

Stabilise bout + microtubules , augmente polymérisation

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7
Q

MAPs

A

Stabilise les microtubules en se liant a leur côté

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8
Q

Tau

A

Rapproche beaucoup microtubules (axone)

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9
Q

MAP2

A

Rapproche microtubule (moins que Tau)

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10
Q

Plectine

A

Lie les éléments du cytosquelette ensemble

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11
Q

Kinésine

A

Moteur protéique microtubule - vers + ATP

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12
Q

Dynéine

A

Moteur protéique microtubule + vers - ATP

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13
Q

Formine

A

Polymérisation actine

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14
Q

ARP

A

Active polymérisation actine + embranchement entre filaments d’actines à 70°

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15
Q

Thymosine

A

Lie actine G, diminue polymérisation actine

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16
Q

Profiline

A

Lie active G, augmente polymérisation actine

17
Q

Cofiline

A

Augmente dépolymérisation actine

18
Q

Gelsoline

A

Chop filament actine et se lie à l’extrémité +

19
Q

Capping protéine (Capuchon)

A

Stabilise les filaments, donc abaisse polymérisation et dépolymérisation à l’extrémité +

20
Q

Tropomyosine

A

Lie active à leur côté, augmente stabilité

21
Q

Fibrine

A

Actine : plaque adhésive

22
Q

Alpha-actinine

A

Pont inter actine

23
Q

Filamine

A

Gel d’actine

24
Q

Spectrine

A

Réseau actine-spectrine lié à la membrane plasmique

25
Q

ERM

A

Protéine membranaire liant actine et membrane plasmique (ezrine, radixine, moesine)

26
Q

Myosine I et II

A

Moteurs protéiques - vers + ATP

27
Q

Desmine

A

Aligne les myofibrilles (contraction musculaire)

Bio cell (3 decks)

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