2qzd

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<SX load='2qzd' size='340' side='right' viewer='molstar' caption='[[2qzd]], [[Resolution|resolution]] 14.00&Aring;' scene=''>
<SX load='2qzd' size='340' side='right' viewer='molstar' caption='[[2qzd]], [[Resolution|resolution]] 14.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2qzd]] is a 1 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=2QZD OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2QZD FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2qzd]] is a 1 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=2QZD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QZD FirstGlance]. <br>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD55, CR, DAF ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD55, CR, DAF ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2qzd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qzd OCA], [http://pdbe.org/2qzd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2qzd RCSB], [http://www.ebi.ac.uk/pdbsum/2qzd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2qzd ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2qzd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qzd OCA], [https://pdbe.org/2qzd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qzd RCSB], [https://www.ebi.ac.uk/pdbsum/2qzd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qzd ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/DAF_HUMAN DAF_HUMAN]] This protein recognizes C4b and C3b fragments that condense with cell-surface hydroxyl or amino groups when nascent C4b and C3b are locally generated during C4 and c3 activation. Interaction of daf with cell-associated C4b and C3b polypeptides interferes with their ability to catalyze the conversion of C2 and factor B to enzymatically active C2a and Bb and thereby prevents the formation of C4b2a and C3bBb, the amplification convertases of the complement cascade.<ref>PMID:7525274</ref>
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[[https://www.uniprot.org/uniprot/DAF_HUMAN DAF_HUMAN]] This protein recognizes C4b and C3b fragments that condense with cell-surface hydroxyl or amino groups when nascent C4b and C3b are locally generated during C4 and c3 activation. Interaction of daf with cell-associated C4b and C3b polypeptides interferes with their ability to catalyze the conversion of C2 and factor B to enzymatically active C2a and Bb and thereby prevents the formation of C4b2a and C3bBb, the amplification convertases of the complement cascade.<ref>PMID:7525274</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]

Revision as of 10:36, 12 January 2022

Fitted structure of SCR4 of DAF into cryoEM density

2qzd, resolution 14.00Å

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OCA

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