1e4k

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Revision as of 11:20, 16 October 2019

CRYSTAL STRUCTURE OF SOLUBLE HUMAN IGG1 FC FRAGMENT-FC-GAMMA RECEPTOR III COMPLEX

Structural highlights

1e4k is a 3 chain structure with sequence from Homo sapiens and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , ,
Related:	2fcb, 1e4j, 1d5i, 1d6v, 1d5b, 1fc1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[IGHG1_HUMAN] Defects in IGHG1 are a cause of multiple myeloma (MM) [MIM:254500]. MM is a malignant tumor of plasma cells usually arising in the bone marrow and characterized by diffuse involvement of the skeletal system, hyperglobulinemia, Bence-Jones proteinuria and anemia. Complications of multiple myeloma are bone pain, hypercalcemia, renal failure and spinal cord compression. The aberrant antibodies that are produced lead to impaired humoral immunity and patients have a high prevalence of infection. Amyloidosis may develop in some patients. Multiple myeloma is part of a spectrum of diseases ranging from monoclonal gammopathy of unknown significance (MGUS) to plasma cell leukemia. Note=A chromosomal aberration involving IGHG1 is found in multiple myeloma. Translocation t(11;14)(q13;q32) with the IgH locus. Translocation t(11;14)(q13;q32) with CCND1; translocation t(4;14)(p16.3;q32.3) with FGFR3; translocation t(6;14)(p25;q32) with IRF4.

Function

[FCG3B_HUMAN] Receptor for the Fc region of immunoglobulins gamma. Low affinity receptor. Binds complexed or aggregated IgG and also monomeric IgG. Contrary to III-A, is not capable to mediate antibody-dependent cytotoxicity and phagocytosis. May serve as a trap for immune complexes in the peripheral circulation which does not activate neutrophils.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The immune response depends on the binding of opsonized antigens to cellular Fc receptors and the subsequent initiation of various cellular effector functions of the immune system. Here we describe the crystal structures of a soluble Fc gamma receptor (sFc gammaRIII, CD16), an Fc fragment from human IgG1 (hFc1) and their complex. In the 1:1 complex the receptor binds to the two halves of the Fc fragment in contact with residues of the C gamma2 domains and the hinge region. Upon complex formation the angle between the two sFc gammaRIII domains increases significantly and the Fc fragment opens asymmetrically. The high degree of amino acid conservation between sFc gammaRIII and other Fc receptors, and similarly between hFc1 and related immunoglobulins, suggest similar structures and modes of association. Thus the described structure is a model for immune complex recognition and helps to explain the vastly differing affinities of other Fc gammaR-IgG complexes and the Fc epsilonRI alpha-IgE complex.

The 3.2-A crystal structure of the human IgG1 Fc fragment-Fc gammaRIII complex.,Sondermann P, Huber R, Oosthuizen V, Jacob U Nature. 2000 Jul 20;406(6793):267-73. PMID:10917521^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Sondermann P, Huber R, Oosthuizen V, Jacob U. The 3.2-A crystal structure of the human IgG1 Fc fragment-Fc gammaRIII complex. Nature. 2000 Jul 20;406(6793):267-73. PMID:10917521 doi:http://dx.doi.org/10.1038/35018508

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1e4k"

@@ Line 1: / Line 1: @@
 ==CRYSTAL STRUCTURE OF SOLUBLE HUMAN IGG1 FC FRAGMENT-FC-GAMMA RECEPTOR III COMPLEX==
-<StructureSection load='1e4k' size='340' side='right' caption='[[1e4k]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
+<StructureSection load='1e4k' size='340' side='right'caption='[[1e4k]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1e4k]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E4K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1E4K FirstGlance]. <br>
@@ Line 33: / Line 33: @@
 ==See Also==
-*[[3D structures of monoclonal antibody|3D structures of monoclonal antibody]]
+*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
 == References ==
 <references/>
@@ Line 40: / Line 40: @@
 [[Category: Homo sapiens]]
 [[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Huber, R]]
 [[Category: Jacob, U]]

1e4k

From Proteopedia

Revision as of 11:20, 16 October 2019

CRYSTAL STRUCTURE OF SOLUBLE HUMAN IGG1 FC FRAGMENT-FC-GAMMA RECEPTOR III COMPLEX

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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