View source for 1zzc


==Crystal Structure of CoII HppE in Complex with Tris Buffer==
<StructureSection load='1zzc' size='340' side='right' caption='[[1zzc]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1zzc]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"actinomyces_wedmorensis"_milard_and_burr_1926 "actinomyces wedmorensis" milard and burr 1926]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZZC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZZC FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1zz6|1zz6]], [[1zz7|1zz7]], [[1zz8|1zz8]], [[1zz9|1zz9]], [[1zzb|1zzb]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fom4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=43759 "Actinomyces wedmorensis" Milard and Burr 1926])</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=1zzc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zzc OCA], [http://pdbe.org/1zzc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1zzc RCSB], [http://www.ebi.ac.uk/pdbsum/1zzc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1zzc ProSAT]</span></td></tr>
</table>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zz/1zzc_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1zzc ConSurf].
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== Publication Abstract from PubMed ==
The biosynthetic pathway of the clinically important antibiotic fosfomycin uses enzymes that catalyse reactions without precedent in biology. Among these is hydroxypropylphosphonic acid epoxidase, which represents a new subfamily of non-haem mononuclear iron enzymes. Here we present six X-ray structures of this enzyme: the apoenzyme at 2.0 A resolution; a native Fe(II)-bound form at 2.4 A resolution; a tris(hydroxymethyl)aminomethane-Co(II)-enzyme complex structure at 1.8 A resolution; a substrate-Co(II)-enzyme complex structure at 2.5 A resolution; and two substrate-Fe(II)-enzyme complexes at 2.1 and 2.3 A resolution. These structural data lead us to suggest how this enzyme is able to recognize and respond to its substrate with a conformational change that protects the radical-based intermediates formed during catalysis. Comparisons with other family members suggest why substrate binding is able to prime iron for dioxygen binding in the absence of alpha-ketoglutarate (a co-substrate required by many mononuclear iron enzymes), and how the unique epoxidation reaction of hydroxypropylphosphonic acid epoxidase may occur.

Structural insight into antibiotic fosfomycin biosynthesis by a mononuclear iron enzyme.,Higgins LJ, Yan F, Liu P, Liu HW, Drennan CL Nature. 2005 Oct 6;437(7060):838-44. Epub 2005 Jul 13. PMID:16015285<ref>PMID:16015285</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1zzc" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Actinomyces wedmorensis milard and burr 1926]]
[[Category: Drennan, C L]]
[[Category: Higgins, L J]]
[[Category: Liu, H W]]
[[Category: Liu, P]]
[[Category: Yan, F]]
[[Category: Cupin]]
[[Category: Holo-hppe]]
[[Category: Mononuclear iron enzyme]]
[[Category: Oxidoreductase]]