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1wzu

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Revision as of 16:31, 27 October 2021

Crystal structure of quinolinate synthase (nadA)

Structural highlights

1wzu is a 1 chain structure with sequence from 'pyrococcus shinkaii'. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[NADA_PYRHO] Catalyzes the condensation of iminoaspartate with dihydroxyacetone phosphate to form quinolinate (By similarity).

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

A gene encoding a quinolinate synthase has been identified in the hyperthermophilic archaeon Pyrococcus horikoshii via genome sequencing. The gene was overexpressed in Escherichia coli, and the crystal structure of the produced enzyme was determined to 2.0 A resolution in the presence of malate, a substrate analogue. The overall structure exhibits a unique triangular architecture composed of a 3-fold repeat of three-layer (alphabetaalpha) sandwich folding. Although some aspects of the fold homologous to the each domain have been observed previously, the overall structure of quinolinate synthase shows no similarity to any known protein structure. The three analogous domains are related to a pseudo-3-fold symmetry. The active site is located at the interface of the three domains and is centered on the pseudo-3-fold axis. The malate molecule is tightly held near the bottom of the active site cavity. The model of the catalytic state during the first condensation step of the quinolinate synthase reaction indicates that the elimination of inorganic phosphate from dihydroxyacetone phosphate may precede the condensation reaction.

Crystal structure of the NAD biosynthetic enzyme quinolinate synthase.,Sakuraba H, Tsuge H, Yoneda K, Katunuma N, Ohshima T J Biol Chem. 2005 Jul 22;280(29):26645-8. Epub 2005 Jun 3. PMID:15937336^[1]

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

References

↑ Sakuraba H, Tsuge H, Yoneda K, Katunuma N, Ohshima T. Crystal structure of the NAD biosynthetic enzyme quinolinate synthase. J Biol Chem. 2005 Jul 22;280(29):26645-8. Epub 2005 Jun 3. PMID:15937336 doi:10.1074/jbc.C500192200

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

Categories: Pyrococcus shinkaii | Large Structures | Sakuraba, H | Biosynthetic protein | Nad

@@ Line 3: / Line 3: @@
 <StructureSection load='1wzu' size='340' side='right'caption='[[1wzu]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1wzu]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/'pyrococcus_shinkaii' 'pyrococcus shinkaii']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WZU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1WZU FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1wzu]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/'pyrococcus_shinkaii' 'pyrococcus shinkaii']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WZU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1WZU FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLT:D-MALATE'>MLT</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MLT:D-MALATE'>MLT</scene></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=1wzu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wzu OCA], [http://pdbe.org/1wzu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1wzu RCSB], [http://www.ebi.ac.uk/pdbsum/1wzu PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1wzu 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=1wzu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wzu OCA], [https://pdbe.org/1wzu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1wzu RCSB], [https://www.ebi.ac.uk/pdbsum/1wzu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1wzu ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/NADA_PYRHO NADA_PYRHO]] Catalyzes the condensation of iminoaspartate with dihydroxyacetone phosphate to form quinolinate (By similarity).
+[[https://www.uniprot.org/uniprot/NADA_PYRHO NADA_PYRHO]] Catalyzes the condensation of iminoaspartate with dihydroxyacetone phosphate to form quinolinate (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1wzu

From Proteopedia

Revision as of 16:31, 27 October 2021

Crystal structure of quinolinate synthase (nadA)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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