1fyd: Difference between revisions
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<StructureSection load='1fyd' size='340' side='right'caption='[[1fyd]], [[Resolution|resolution]] 2.25Å' scene=''> | <StructureSection load='1fyd' size='340' side='right'caption='[[1fyd]], [[Resolution|resolution]] 2.25Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1fyd]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1fyd]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/"vibrio_subtilis"_ehrenberg_1835 "vibrio subtilis" ehrenberg 1835]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FYD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FYD FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=POP:PYROPHOSPHATE+2-'>POP</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=POP:PYROPHOSPHATE+2-'>POP</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ee1|1ee1]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1ee1|1ee1]]</div></td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/NAD(+)_synthase_(glutamine-hydrolyzing) NAD(+) synthase (glutamine-hydrolyzing)], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.5.1 6.3.5.1] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1fyd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fyd OCA], [https://pdbe.org/1fyd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fyd RCSB], [https://www.ebi.ac.uk/pdbsum/1fyd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fyd ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/NADE_BACSU NADE_BACSU]] Catalyzes a key step in NAD biosynthesis, transforming deamido-NAD into NAD by a two-step reaction.[HAMAP-Rule:MF_00193] | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Revision as of 14:16, 28 July 2021
CRYSTAL STRUCTURE OF NH3-DEPENDENT NAD+ SYNTHETASE FROM BACILLUS SUBTILIS COMPLEXED WITH ONE MOLECULE AMP, ONE PYROPHOSPHATE ION AND ONE MG2+ IONCRYSTAL STRUCTURE OF NH3-DEPENDENT NAD+ SYNTHETASE FROM BACILLUS SUBTILIS COMPLEXED WITH ONE MOLECULE AMP, ONE PYROPHOSPHATE ION AND ONE MG2+ ION
Structural highlights
Function[NADE_BACSU] Catalyzes a key step in NAD biosynthesis, transforming deamido-NAD into NAD by a two-step reaction.[HAMAP-Rule:MF_00193] 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 PubMedThe NH(3)-dependent NAD(+) synthetase (NADS) participates in the biosynthesis of nicotinamide adenine dinucleotide (NAD(+)) by transforming nicotinic acid adenine dinucleotide (NaAD) to NAD(+). The structural behavior of the active site, including stabilization of flexible loops 82-87 and 204-225, has been studied by determination of the crystal structures of complexes of NADS with natural substrates and a substrate analog. Both loops are stabilized independently of NaAD and solely from the ATP-binding site. Analysis of the binding contacts suggests that the minor loop 82-87 is stabilized primarily by a hydrogen bond with the adenine base of ATP. Formation of a coordination complex with Mg(2+) in the ATP-binding site may contribute to the stabilization of the major loop 204-225. The major loop has a role in substrate recognition and stabilization, in addition to the protection of the reaction intermediate described previously. A second and novel Mg(2+) position has been observed closer to the NaAD-binding site in the structure crystallized at pH 7.5, where the enzyme is active. This could therefore be the catalytically active Mg(2+). Stabilization of active-site loops in NH3-dependent NAD+ synthetase from Bacillus subtilis.,Devedjiev Y, Symersky J, Singh R, Jedrzejas M, Brouillette C, Brouillette W, Muccio D, Chattopadhyay D, DeLucas L Acta Crystallogr D Biol Crystallogr. 2001 Jun;57(Pt 6):806-12. Epub 2001, May 25. PMID:11375500[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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