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==Crystal structure of the human glutaminyl cyclase mutant D248A at 1.97 angstrom resolution==
==Crystal structure of the human glutaminyl cyclase mutant D248A at 1.97 angstrom resolution==
<StructureSection load='2zel' size='340' side='right' caption='[[2zel]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
<StructureSection load='2zel' size='340' side='right'caption='[[2zel]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2zel]] is a 2 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=2ZEL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZEL FirstGlance]. <br>
<table><tr><td colspan='2'>[[2zel]] is a 2 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=2ZEL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZEL FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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]] 1.97&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2afm|2afm]], [[2zed|2zed]], [[2zee|2zee]], [[2zef|2zef]], [[2zeg|2zeg]], [[2zeh|2zeh]], [[2zem|2zem]], [[2zen|2zen]], [[2zeo|2zeo]], [[2zep|2zep]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">QPCT ([http://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'>[https://proteopedia.org/fgij/fg.htm?mol=2zel FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zel OCA], [https://pdbe.org/2zel PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zel RCSB], [https://www.ebi.ac.uk/pdbsum/2zel PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zel ProSAT]</span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glutaminyl-peptide_cyclotransferase Glutaminyl-peptide cyclotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.2.5 2.3.2.5] </span></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=2zel FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zel OCA], [http://pdbe.org/2zel PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zel RCSB], [http://www.ebi.ac.uk/pdbsum/2zel PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zel ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/QPCT_HUMAN QPCT_HUMAN]] Responsible for the biosynthesis of pyroglutamyl peptides. Has a bias against acidic and tryptophan residues adjacent to the N-terminal glutaminyl residue and a lack of importance of chain length after the second residue. Also catalyzes N-terminal pyroglutamate formation. In vitro, catalyzes pyroglutamate formation of N-terminally truncated form of APP amyloid-beta peptides [Glu-3]-beta-amyloid. May be involved in the N-terminal pyroglutamate formation of several amyloid-related plaque-forming peptides.<ref>PMID:15063747</ref> <ref>PMID:18486145</ref> <ref>PMID:21288892</ref>
[https://www.uniprot.org/uniprot/QPCT_HUMAN QPCT_HUMAN] Responsible for the biosynthesis of pyroglutamyl peptides. Has a bias against acidic and tryptophan residues adjacent to the N-terminal glutaminyl residue and a lack of importance of chain length after the second residue. Also catalyzes N-terminal pyroglutamate formation. In vitro, catalyzes pyroglutamate formation of N-terminally truncated form of APP amyloid-beta peptides [Glu-3]-beta-amyloid. May be involved in the N-terminal pyroglutamate formation of several amyloid-related plaque-forming peptides.<ref>PMID:15063747</ref> <ref>PMID:18486145</ref> <ref>PMID:21288892</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Glutaminyl-peptide cyclotransferase]]
[[Category: Homo sapiens]]
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Chang, E C]]
[[Category: Chang EC]]
[[Category: Chou, T L]]
[[Category: Chou TL]]
[[Category: Huang, K F]]
[[Category: Huang KF]]
[[Category: Wang, A H]]
[[Category: Wang AH]]
[[Category: Wang, Y R]]
[[Category: Wang YR]]
[[Category: Acyltransferase]]
[[Category: Glutaminyl cyclase]]
[[Category: Glycoprotein]]
[[Category: Hydrogen bond network]]
[[Category: Metal-binding]]
[[Category: Proton transfer]]
[[Category: Pyroglutamate]]
[[Category: Site-directed mutagenesis]]
[[Category: Transferase]]

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