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==CRYSTAL STRUCTURE OF CHAPERONE PROTEIN PAPD REVEALS AN IMMUNOGLOBULIN FOLD==
==CRYSTAL STRUCTURE OF CHAPERONE PROTEIN PAPD REVEALS AN IMMUNOGLOBULIN FOLD==
<StructureSection load='3dpa' size='340' side='right' caption='[[3dpa]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='3dpa' size='340' side='right'caption='[[3dpa]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3dpa]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DPA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3DPA FirstGlance]. <br>
<table><tr><td colspan='2'>[[3dpa]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DPA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DPA FirstGlance]. <br>
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3dpa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dpa OCA], [http://pdbe.org/3dpa PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3dpa RCSB], [http://www.ebi.ac.uk/pdbsum/3dpa PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3dpa ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</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=3dpa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dpa OCA], [https://pdbe.org/3dpa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dpa RCSB], [https://www.ebi.ac.uk/pdbsum/3dpa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dpa ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PAPD_ECOLX PAPD_ECOLX]] Binds and caps interactive surfaces on pilus subunits to prevent them from participating in non-productive interactions. Facilitates the import of subunits into the periplasm. May facilitate subunit folding. Chaperone-subunit complexes are then targeted to the PapC outer membrane usher where the chaperone must uncap from the subunits.  
[https://www.uniprot.org/uniprot/PAPD_ECOLX PAPD_ECOLX] Binds and caps interactive surfaces on pilus subunits to prevent them from participating in non-productive interactions. Facilitates the import of subunits into the periplasm. May facilitate subunit folding. Chaperone-subunit complexes are then targeted to the PapC outer membrane usher where the chaperone must uncap from the subunits.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3dpa ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3dpa ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The chaperone protein PapD mediates assembly of pili in Escherichia coli. Its polypeptide chain folds into two immunoglobulin-type domains that are homologous in sequence to the human lymphocyte differentiation antigen Leu-1/CD5.
Crystal structure of chaperone protein PapD reveals an immunoglobulin fold.,Holmgren A, Branden CI Nature. 1989 Nov 16;342(6247):248-51. PMID:2478891<ref>PMID:2478891</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3dpa" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Escherichia coli]]
[[Category: Branden, C I]]
[[Category: Large Structures]]
[[Category: Holmgren, A]]
[[Category: Branden C-I]]
[[Category: Chaperone protein]]
[[Category: Holmgren A]]
Retrieved from "https://proteopedia.org/3dpa"