7qdo: Difference between revisions

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'''Unreleased structure'''


The entry 7qdo is ON HOLD  until Paper Publication
==Cryo-EM structure of human monomeric IgM-Fc==
 
<StructureSection load='7qdo' size='340' side='right'caption='[[7qdo]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
Authors:  
== Structural highlights ==
 
<table><tr><td colspan='2'>[[7qdo]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7QDO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7QDO FirstGlance]. <br>
Description:  
</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=7qdo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7qdo OCA], [https://pdbe.org/7qdo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7qdo RCSB], [https://www.ebi.ac.uk/pdbsum/7qdo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7qdo ProSAT]</span></td></tr>
[[Category: Unreleased Structures]]
</table>
== Disease ==
[https://www.uniprot.org/uniprot/IGHM_HUMAN IGHM_HUMAN] Autosomal agammaglobulinemia. The disease is caused by mutations affecting the gene represented in this entry.<ref>PMID:8890099</ref>
== Function ==
[https://www.uniprot.org/uniprot/IGHM_HUMAN IGHM_HUMAN] IgM antibodies play an important role in primary defense mechanisms. They have been shown to be involved in early recognition of external invaders like bacteria and viruses, cellular waste and modified self, as well as in recognition and elimination of precancerous and cancerous lesions. The membrane-bound form is found in the majority of normal B-cells alongside with IgD. Membrane-bound IgM induces the phosphorylation of CD79A and CD79B by the Src family of protein tyrosine kinases. It may cause death of cells by apoptosis. It is also found in soluble form, which represents about 30% of the total serum immunoglobulins where it is found almost exclusively as a homopentamer. After the antigen binds to the B-cell receptor, the secreted form is secreted in large amounts.<ref>PMID:3137579</ref>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Chen Q]]
[[Category: Rosenthal P]]
[[Category: Tolar P]]

Latest revision as of 09:00, 26 October 2022

Cryo-EM structure of human monomeric IgM-FcCryo-EM structure of human monomeric IgM-Fc

Structural highlights

7qdo is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

IGHM_HUMAN Autosomal agammaglobulinemia. The disease is caused by mutations affecting the gene represented in this entry.[1]

Function

IGHM_HUMAN IgM antibodies play an important role in primary defense mechanisms. They have been shown to be involved in early recognition of external invaders like bacteria and viruses, cellular waste and modified self, as well as in recognition and elimination of precancerous and cancerous lesions. The membrane-bound form is found in the majority of normal B-cells alongside with IgD. Membrane-bound IgM induces the phosphorylation of CD79A and CD79B by the Src family of protein tyrosine kinases. It may cause death of cells by apoptosis. It is also found in soluble form, which represents about 30% of the total serum immunoglobulins where it is found almost exclusively as a homopentamer. After the antigen binds to the B-cell receptor, the secreted form is secreted in large amounts.[2]

References

  1. Yel L, Minegishi Y, Coustan-Smith E, Buckley RH, Trubel H, Pachman LM, Kitchingman GR, Campana D, Rohrer J, Conley ME. Mutations in the mu heavy-chain gene in patients with agammaglobulinemia. N Engl J Med. 1996 Nov 14;335(20):1486-93. PMID:8890099 doi:http://dx.doi.org/10.1056/NEJM199611143352003
  2. Tisch R, Roifman CM, Hozumi N. Functional differences between immunoglobulins M and D expressed on the surface of an immature B-cell line. Proc Natl Acad Sci U S A. 1988 Sep;85(18):6914-8. PMID:3137579

7qdo, resolution 3.60Å

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