1drt: Difference between revisions

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[[Image:1drt.jpg|left|200px]]


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==CRYSTAL STRUCTURE OF CLAVAMINATE SYNTHASE IN COMPLEX WITH FE(II), 2-OXOGLUTARATE AND PROCLAVAMINIC ACID==
The line below this paragraph, containing "STRUCTURE_1drt", creates the "Structure Box" on the page.
<StructureSection load='1drt' size='340' side='right'caption='[[1drt]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1drt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptomyces_clavuligerus Streptomyces clavuligerus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DRT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DRT FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AKG:2-OXOGLUTARIC+ACID'>AKG</scene>, <scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=PCV:5-AMINO-3-HYDROXY-2-(2-OXO-AZETIDIN-1-YL)-PENTANOIC+ACID'>PCV</scene></td></tr>
{{STRUCTURE_1drt|  PDB=1drt  |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1drt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1drt OCA], [https://pdbe.org/1drt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1drt RCSB], [https://www.ebi.ac.uk/pdbsum/1drt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1drt ProSAT]</span></td></tr>
 
</table>
'''CRYSTAL STRUCTURE OF CLAVAMINATE SYNTHASE IN COMPLEX WITH FE(II), 2-OXOGLUTARATE AND PROCLAVAMINIC ACID'''
== Function ==
 
[https://www.uniprot.org/uniprot/CAS1_STRCL CAS1_STRCL]
 
== Evolutionary Conservation ==
==Overview==
[[Image:Consurf_key_small.gif|200px|right]]
Clavaminate synthase (CAS), a remarkable Fe(II)/2-oxoglutarate oxygenase, catalyzes three separate oxidative reactions in the biosynthesis of clavulanic acid, a clinically used inhibitor of serine beta-lactamases. The first CAS-catalyzed step (hydroxylation) is separated from the latter two (oxidative cyclization/desaturation) by the action of an amidinohydrolase. Here, we describe crystal structures of CAS in complex with Fe(II), 2-oxoglutarate (2OG) and substrates (N-alpha-acetyl-L-arginine and proclavaminic acid). They reveal how CAS catalyzes formation of the clavam nucleus, via a process unprecedented in synthetic organic chemistry, and suggest how it discriminates between substrates and controls reaction of its highly reactive ferryl intermediate. The presence of an unpredicted jelly roll beta-barrel core in CAS implies divergent evolution within the family of 2OG and related oxygenases. Comparison with other non-heme oxidases/oxygenases reveals flexibility in the position which dioxygen ligates to the iron, in contrast to the analogous heme-using enzymes.
Check<jmol>
 
  <jmolCheckbox>
==About this Structure==
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dr/1drt_consurf.spt"</scriptWhenChecked>
1DRT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Streptomyces_clavuligerus Streptomyces clavuligerus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DRT OCA].  
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 
    <text>to colour the structure by Evolutionary Conservation</text>
==Reference==
  </jmolCheckbox>
Structural origins of the selectivity of the trifunctional oxygenase clavaminic acid synthase., Zhang Z, Ren J, Stammers DK, Baldwin JE, Harlos K, Schofield CJ, Nat Struct Biol. 2000 Feb;7(2):127-33. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10655615 10655615]
</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=1drt ConSurf].
[[Category: Single protein]]
<div style="clear:both"></div>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Streptomyces clavuligerus]]
[[Category: Streptomyces clavuligerus]]
[[Category: Baldwin, J E.]]
[[Category: Baldwin JE]]
[[Category: Harlos, K.]]
[[Category: Harlos K]]
[[Category: Ren, J.]]
[[Category: Ren J]]
[[Category: Schofield, C J.]]
[[Category: Schofield CJ]]
[[Category: Stammers, D K.]]
[[Category: Stammers DK]]
[[Category: Zhang, Z H.]]
[[Category: Zhang ZH]]
[[Category: Clavaminate synthase 1]]
[[Category: Oxygenase]]
[[Category: Trifunctional enzyme]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 14:11:54 2008''
Retrieved from "https://proteopedia.org/1drt"