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1ow0

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Revision as of 15:09, 27 October 2021

Crystal structure of human FcaRI bound to IgA1-Fc

Structural highlights

1ow0 is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , ,
NonStd Res:
Related:	1ovz
Gene:	IGHA1 (HUMAN), FCAR OR CD89 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[IGHA1_HUMAN] Note=A chromosomal aberration involving IGHA1 is found in multiple myeloma (MM) cell lines. Translocation t(1;14)(q21;q32) that forms a FCRL4-IGHA1 fusion protein.

Function

[IGHA1_HUMAN] Ig alpha is the major immunoglobulin class in body secretions. It may serve both to defend against local infection and to prevent access of foreign antigens to the general immunologic system. [FCAR_HUMAN] Binds to the Fc region of immunoglobulins alpha. Mediates several functions including cytokine production.

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

Immunoglobulin-alpha (IgA)-bound antigens induce immune effector responses by activating the IgA-specific receptor FcalphaRI (CD89) on immune cells. Here we present crystal structures of human FcalphaRI alone and in a complex with the Fc region of IgA1 (Fcalpha). FcalphaRI has two immunoglobulin-like domains that are oriented at approximately right angles to each other. Fcalpha resembles the Fcs of immunoglobulins IgG and IgE, but has differently located interchain disulphide bonds and external rather than interdomain N-linked carbohydrates. Unlike 1:1 FcgammaRIII:IgG and Fc epsilon RI:IgE complexes, two FcalphaRI molecules bind each Fcalpha dimer, one at each Calpha2-Calpha3 junction. The FcalphaRI-binding site on IgA1 overlaps the reported polymeric immunoglobulin receptor (pIgR)-binding site, which might explain why secretory IgA cannot initiate phagocytosis or bind to FcalphaRI-expressing cells in the absence of an integrin co-receptor.

Insights into IgA-mediated immune responses from the crystal structures of human FcalphaRI and its complex with IgA1-Fc.,Herr AB, Ballister ER, Bjorkman PJ Nature. 2003 Jun 5;423(6940):614-20. Epub 2003 May 21. PMID:12768205^[1]

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

References

↑ Herr AB, Ballister ER, Bjorkman PJ. Insights into IgA-mediated immune responses from the crystal structures of human FcalphaRI and its complex with IgA1-Fc. Nature. 2003 Jun 5;423(6940):614-20. Epub 2003 May 21. PMID:12768205 doi:http://dx.doi.org/10.1038/nature01685

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1ow0"

@@ Line 3: / Line 3: @@
 <StructureSection load='1ow0' size='340' side='right'caption='[[1ow0]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1ow0]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OW0 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1OW0 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1ow0]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OW0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OW0 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=FUL:BETA-L-FUCOSE'>FUL</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NDG:2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE'>NDG</scene></td></tr>
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=SIA:O-SIALIC+ACID'>SIA</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1ovz|1ovz]]</div></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">IGHA1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), FCAR OR CD89 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">IGHA1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), FCAR OR CD89 ([https://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'>[http://proteopedia.org/fgij/fg.htm?mol=1ow0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ow0 OCA], [http://pdbe.org/1ow0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ow0 RCSB], [http://www.ebi.ac.uk/pdbsum/1ow0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ow0 ProSAT]</span></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=1ow0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ow0 OCA], [https://pdbe.org/1ow0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ow0 RCSB], [https://www.ebi.ac.uk/pdbsum/1ow0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ow0 ProSAT]</span></td></tr>
 </table>
 == Disease ==
-[[http://www.uniprot.org/uniprot/IGHA1_HUMAN IGHA1_HUMAN]] Note=A chromosomal aberration involving IGHA1 is found in multiple myeloma (MM) cell lines. Translocation t(1;14)(q21;q32) that forms a FCRL4-IGHA1 fusion protein.
+[[https://www.uniprot.org/uniprot/IGHA1_HUMAN IGHA1_HUMAN]] Note=A chromosomal aberration involving IGHA1 is found in multiple myeloma (MM) cell lines. Translocation t(1;14)(q21;q32) that forms a FCRL4-IGHA1 fusion protein.
 == Function ==
-[[http://www.uniprot.org/uniprot/IGHA1_HUMAN IGHA1_HUMAN]] Ig alpha is the major immunoglobulin class in body secretions. It may serve both to defend against local infection and to prevent access of foreign antigens to the general immunologic system. [[http://www.uniprot.org/uniprot/FCAR_HUMAN FCAR_HUMAN]] Binds to the Fc region of immunoglobulins alpha. Mediates several functions including cytokine production.
+[[https://www.uniprot.org/uniprot/IGHA1_HUMAN IGHA1_HUMAN]] Ig alpha is the major immunoglobulin class in body secretions. It may serve both to defend against local infection and to prevent access of foreign antigens to the general immunologic system. [[https://www.uniprot.org/uniprot/FCAR_HUMAN FCAR_HUMAN]] Binds to the Fc region of immunoglobulins alpha. Mediates several functions including cytokine production.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 33: / Line 33: @@
 </div>
 <div class="pdbe-citations 1ow0" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[IgA|IgA]]
 == References ==
 <references/>

1ow0

From Proteopedia

Revision as of 15:09, 27 October 2021

Crystal structure of human FcaRI bound to IgA1-Fc

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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