Format

Send to

Choose Destination
See comment in PubMed Commons below
Immunity. 1998 Apr;8(4):483-95.

Nef interacts with the mu subunit of clathrin adaptor complexes and reveals a cryptic sorting signal in MHC I molecules.

Author information

1
Laboratoire Rétrovirus et Transfert Génétique Unité de Recherche Associée CNRS 1157, Institut Pasteur, Paris, France.

Abstract

The surface expression of MHC I is reduced in HIV-infected cells. We show that the Nef protein affects the intracellular sorting of HLA-A and -B molecules. In the presence of Nef, these proteins accumulate in the Golgi and colocalize with clathrin-coated vesicles. MHC I modulation relies on a tyrosine-based sorting signal located in the cytoplasmic domain of HLA-A and -B heavy chains. This cryptic sorting signal becomes operative only in the presence of Nef. Nef interacts with the medium (mu) subunit of AP adaptor complexes involved in the recognition of tyrosine-based sorting signals, likely facilitating the connection between MHC I and the clathrin-dependent sorting machinery.

PMID:
9586638
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center