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3uj1

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==Crystal structure of the third thioredoxin domain of human ERp46==
==Crystal structure of the third thioredoxin domain of human ERp46==
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<StructureSection load='3uj1' size='340' side='right' caption='[[3uj1]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
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<StructureSection load='3uj1' size='340' side='right'caption='[[3uj1]], [[Resolution|resolution]] 2.65&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3uj1]] 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=3UJ1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UJ1 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3uj1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UJ1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UJ1 FirstGlance]. <br>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TLP46, TXNDC5, UNQ364/PRO700 ([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='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.651&#8491;</td></tr>
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<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=3uj1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3uj1 OCA], [http://pdbe.org/3uj1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3uj1 RCSB], [http://www.ebi.ac.uk/pdbsum/3uj1 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3uj1 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=3uj1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3uj1 OCA], [https://pdbe.org/3uj1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3uj1 RCSB], [https://www.ebi.ac.uk/pdbsum/3uj1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3uj1 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/TXND5_HUMAN TXND5_HUMAN]] Possesses thioredoxin activity. Has been shown to reduce insulin disulfide bonds. Also complements protein disulfide-isomerase deficiency in yeast (By similarity).
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[https://www.uniprot.org/uniprot/TXND5_HUMAN TXND5_HUMAN] Possesses thioredoxin activity. Has been shown to reduce insulin disulfide bonds. Also complements protein disulfide-isomerase deficiency in yeast (By similarity).
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The protein disulfide isomerase (PDI) family member ERp46/endoPDI/thioredoxin domain-containing protein 5 is preferentially expressed in a limited number of tissues, where it may function as a survival factor for nitrosative stress in vivo. It is involved in insulin production as well as in adiponectin signaling and interacts specifically with the redox-regulatory endoplasmic reticulum proteins endoplasmic oxidoreductin 1alpha (Ero1alpha) and peroxiredoxin-4. Here, we show that ERp46, although lacking a PDI-like redox-inactive b'-thioredoxin domain with its hydrophobic substrate binding site, is able to bind to a large pool of peptides containing aromatic and basic residues via all three of its catalytic domains (a(0), a and a'), though the a(0) domain may contain the primary binding site. ERp46, which shows relatively higher activity as a disulfide-reductase than as an oxidase/isomerase in vitro compared to PDI and ERp57, possesses chaperone activity in vivo, a property also shared by the C-terminal a' domain. A crystal structure of the a' domain is also presented, offering a view of possible substrate binding sites within catalytic domains of PDI proteins.
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Peptide Binding by Catalytic Domains of the Protein Disulfide Isomerase-Related Protein ERp46.,Funkner A, Parthier C, Schutkowski M, Zerweck J, Lilie H, Gyrych N, Fischer G, Stubbs MT, Ferrari DM J Mol Biol. 2013 Jan 30. pii: S0022-2836(13)00045-4. doi:, 10.1016/j.jmb.2013.01.029. PMID:23376096<ref>PMID:23376096</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 3uj1" style="background-color:#fffaf0;"></div>
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==See Also==
==See Also==
*[[ER-resident protein|ER-resident protein]]
*[[ER-resident protein|ER-resident protein]]
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== References ==
 
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<references/>
 
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Human]]
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[[Category: Homo sapiens]]
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[[Category: Ferrari, D M]]
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[[Category: Large Structures]]
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[[Category: Funkner, A]]
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[[Category: Ferrari DM]]
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[[Category: Parthier, C]]
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[[Category: Funkner A]]
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[[Category: Stubbs, M T]]
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[[Category: Parthier C]]
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[[Category: Chaperone]]
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[[Category: Stubbs MT]]
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[[Category: Endoplasmic reticulum]]
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[[Category: Protein disulfide isomerase]]
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[[Category: Protein folding]]
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[[Category: Substrate binding]]
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[[Category: Thioredoxin fold]]
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Current revision

Crystal structure of the third thioredoxin domain of human ERp46

PDB ID 3uj1

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