View source for 7v4w


==Crystal structure of Antibody 16A in complex with MUC1 peptide==
<StructureSection load='7v4w' size='340' side='right'caption='[[7v4w]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7v4w]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] 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=7V4W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7V4W FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</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=7v4w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7v4w OCA], [https://pdbe.org/7v4w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7v4w RCSB], [https://www.ebi.ac.uk/pdbsum/7v4w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7v4w ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/MUC1_HUMAN MUC1_HUMAN] Note=MUC1/CA 15-3 is used as a serological clinical marker of breast cancer to monitor response to breast cancer treatment and disease recurrence (PubMed:20816948). Decreased levels over time may be indicative of a positive response to treatment. Conversely, increased levels may indicate disease progression. At an early stage disease, only 21% of patients exhibit high MUC1/CA 15-3 levels, that is why CA 15-3 is not a useful screening test. Most antibodies target the highly immunodominant core peptide domain of 20 amino acid (APDTRPAPGSTAPPAHGVTS) tandem repeats. Some antibodies recognize glycosylated epitopes.
== Function ==
[https://www.uniprot.org/uniprot/MUC1_HUMAN MUC1_HUMAN] The alpha subunit has cell adhesive properties. Can act both as an adhesion and an anti-adhesion protein. May provide a protective layer on epithelial cells against bacterial and enzyme attack.<ref>PMID:9139698</ref> <ref>PMID:11877440</ref> <ref>PMID:14688481</ref> <ref>PMID:15710329</ref> <ref>PMID:16288032</ref> <ref>PMID:15513966</ref> <ref>PMID:17524503</ref> <ref>PMID:17308127</ref> <ref>PMID:16983337</ref>   The beta subunit contains a C-terminal domain which is involved in cell signaling, through phosphorylations and protein-protein interactions. Modulates signaling in ERK, SRC and NF-kappa-B pathways. In activated T-cells, influences directly or indirectly the Ras/MAPK pathway. Promotes tumor progression. Regulates TP53-mediated transcription and determines cell fate in the genotoxic stress response. Binds, together with KLF4, the PE21 promoter element of TP53 and represses TP53 activity.<ref>PMID:9139698</ref> <ref>PMID:11877440</ref> <ref>PMID:14688481</ref> <ref>PMID:15710329</ref> <ref>PMID:16288032</ref> <ref>PMID:15513966</ref> <ref>PMID:17524503</ref> <ref>PMID:17308127</ref> <ref>PMID:16983337</ref> 

==See Also==
*[[Antibody 3D structures|Antibody 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Han YB]]
[[Category: Meng B]]
[[Category: Niu J]]
[[Category: Xu L]]
[[Category: Yang B]]