2fcb: Difference between revisions
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{{STRUCTURE_2fcb| PDB=2fcb | SCENE= }} | {{STRUCTURE_2fcb| PDB=2fcb | SCENE= }} | ||
===HUMAN FC GAMMA RECEPTOR IIB ECTODOMAIN (CD32)=== | |||
{{ABSTRACT_PUBMED_10064577}} | |||
=== | ==Disease== | ||
[[http://www.uniprot.org/uniprot/FCG2B_HUMAN FCG2B_HUMAN]] Note=A chromosomal aberration involving FCGR2B is found in a follicular lymphoma. Translocation t(1;22)(q22;q11). The translocation leads to the hyperexpression of the receptor. This may play a role in the tumor progression. Defects in FCGR2B are a cause of susceptibility to systemic lupus erythematosus (SLE) [MIM:[http://omim.org/entry/152700 152700]]. A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow.<ref>PMID:12115230</ref><ref>PMID:20385827</ref> | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/FCG2B_HUMAN FCG2B_HUMAN]] Receptor for the Fc region of complexed or aggregated immunoglobulins gamma. Low affinity receptor. Involved in a variety of effector and regulatory functions such as phagocytosis of immune complexes and modulation of antibody production by B-cells. Binding to this receptor results in down-modulation of previous state of cell activation triggered via antigen receptors on B-cells (BCR), T-cells (TCR) or via another Fc receptor. Isoform IIB1 fails to mediate endocytosis or phagocytosis. Isoform IIB2 does not trigger phagocytosis. | |||
==About this Structure== | ==About this Structure== | ||
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==Reference== | ==Reference== | ||
<ref group="xtra">PMID:010064577</ref><references group="xtra"/> | <ref group="xtra">PMID:010064577</ref><references group="xtra"/><references/> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Huber, R.]] | [[Category: Huber, R.]] | ||