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==HIV-1 Nef in complex with MHC-I cytoplasmic domain and Mu1 adaptin subunit of AP1 adaptor (second domain)==
==HIV-1 Nef in complex with MHC-I cytoplasmic domain and Mu1 adaptin subunit of AP1 adaptor (second domain)==
<StructureSection load='4en2' size='340' side='right' caption='[[4en2]], [[Resolution|resolution]] 2.58&Aring;' scene=''>
<StructureSection load='4en2' size='340' side='right'caption='[[4en2]], [[Resolution|resolution]] 2.58&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4en2]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/9hiv1 9hiv1], [http://en.wikipedia.org/wiki/Human Human] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EN2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EN2 FirstGlance]. <br>
<table><tr><td colspan='2'>[[4en2]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens], [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EN2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EN2 FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4emz|4emz]]</td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.58&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Ap1m1, Cltnm ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), nef ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11676 9HIV1]), HLA-2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4en2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4en2 OCA], [https://pdbe.org/4en2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4en2 RCSB], [https://www.ebi.ac.uk/pdbsum/4en2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4en2 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4en2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4en2 OCA], [http://pdbe.org/4en2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4en2 RCSB], [http://www.ebi.ac.uk/pdbsum/4en2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4en2 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/AP1M1_MOUSE AP1M1_MOUSE]] Subunit of clathrin-associated adaptor protein complex 1 that plays a role in protein sorting in the trans-Golgi network (TGN) and endosomes. The AP complexes mediate the recruitment of clathrin to membranes and the recognition of sorting signals within the cytosolic tails of transmembrane cargo molecules.
[https://www.uniprot.org/uniprot/AP1M1_MOUSE AP1M1_MOUSE] Subunit of clathrin-associated adaptor protein complex 1 that plays a role in protein sorting in the trans-Golgi network (TGN) and endosomes. The AP complexes mediate the recruitment of clathrin to membranes and the recognition of sorting signals within the cytosolic tails of transmembrane cargo molecules.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The HIV-1 protein Nef inhibits antigen presentation by class I major histocompatibility complex (MHC-I). We determined the mechanism of this activity by solving the crystal structure of a protein complex comprising Nef, the MHC-I cytoplasmic domain (MHC-I CD) and the mu1 subunit of the clathrin adaptor protein complex 1. A ternary, cooperative interaction clamps the MHC-I CD into a narrow binding groove at the Nef-mu1 interface, which encompasses the cargo-recognition site of mu1 and the proline-rich strand of Nef. The Nef C terminus induces a previously unobserved conformational change in mu1, whereas the N terminus binds the Nef core to position it optimally for complex formation. Positively charged patches on mu1 recognize acidic clusters in Nef and MHC-I. The structure shows how Nef functions as a clathrin-associated sorting protein to alter the specificity of host membrane trafficking and enable viral evasion of adaptive immunity.


Structural basis of evasion of cellular adaptive immunity by HIV-1 Nef.,Jia X, Singh R, Homann S, Yang H, Guatelli J, Xiong Y Nat Struct Mol Biol. 2012 Jun 17;19(7):701-6. doi: 10.1038/nsmb.2328. PMID:22705789<ref>PMID:22705789</ref>
==See Also==
 
*[[Adaptin 3D structures|Adaptin 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
*[[Protein Nef 3D structures|Protein Nef 3D structures]]
</div>
<div class="pdbe-citations 4en2" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Lk3 transgenic mice]]
[[Category: Jia, X]]
[[Category: Xiong, Y]]
[[Category: Adaptor protein complex 1]]
[[Category: Antigen presentation]]
[[Category: Clasp]]
[[Category: Hiv]]
[[Category: Host defense]]
[[Category: Human immunodeficiency virus 1]]
[[Category: Human immunodeficiency virus 1]]
[[Category: Membrane trafficking]]
[[Category: Large Structures]]
[[Category: Mhc-i]]
[[Category: Mus musculus]]
[[Category: Mu1 adaptin subunit]]
[[Category: Jia X]]
[[Category: Nef]]
[[Category: Xiong Y]]
[[Category: Sorting motif recognition]]
[[Category: Viral hijacking]]
[[Category: Viral protein-immune system complex]]

Latest revision as of 14:04, 1 March 2024

HIV-1 Nef in complex with MHC-I cytoplasmic domain and Mu1 adaptin subunit of AP1 adaptor (second domain)HIV-1 Nef in complex with MHC-I cytoplasmic domain and Mu1 adaptin subunit of AP1 adaptor (second domain)

Structural highlights

4en2 is a 6 chain structure with sequence from Homo sapiens, Human immunodeficiency virus 1 and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.58Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

AP1M1_MOUSE Subunit of clathrin-associated adaptor protein complex 1 that plays a role in protein sorting in the trans-Golgi network (TGN) and endosomes. The AP complexes mediate the recruitment of clathrin to membranes and the recognition of sorting signals within the cytosolic tails of transmembrane cargo molecules.

See Also

4en2, resolution 2.58Å

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OCA
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