MHC Flashcards

1
Q

Chaperonine:

A

HSP- citosol si nucleu

GRP- proteina din reticul Golgi: GRP 78, 94, calreticulina, calnexina.

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2
Q

Foldaze:

A

PDI- protein disulfid izomeraze: formarea de punti intre Cys

PPI- peptidil prolil cis-trans-izomeraza - intre resturi de prolina

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3
Q

Transloconi:

A

Pori din membrana RER prin care proteinele aberante sunt livrate la nivelul proteazomului.

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4
Q

ERAD:

A

Degradarea Asociata reticulului endoplasmic

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5
Q

Proteinele care ajung la proteazomi trebuie sa fie:

A

Marcate cu Ubiquitina

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6
Q

Chaperonina care ajuta la stabilizarea lantului alfa din MHCI:

A

Calnexina

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7
Q

Chaperonina care ajuta la unirea lanturilor alfa si beta din MHCI:

A

Calnexina

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8
Q

Calreticulina actioneaza in tandem cu:

A

Foldaza ERP-57

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9
Q

Tapasina:

A

Remorcher care trage trio-ul MHCI-calreticulina-ERP57 din interiorul RER la membrana.

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10
Q

Fragmentele oligopeptidice din proteazom vor fi preluate de:

A

TAP 1,2- transportor asociat proteazomului

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11
Q

Deosebire structurala intre MHCII si I:

A

Lanturile alfa si betga de la MHCII sunt ambele transmembranare.

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12
Q

Ce este CLIP?

A

Peptidul care ramane dupa atacul proteolitic si scindarea peptidului inhibitor

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