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[[Image:1zzb.gif|left|200px]]


{{Structure
==Crystal Structure of CoII HppE in Complex with Substrate==
|PDB= 1zzb |SIZE=350|CAPTION= <scene name='initialview01'>1zzb</scene>, resolution 2.30&Aring;
<StructureSection load='1zzb' size='340' side='right'caption='[[1zzb]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=S0H:(S)-2-HYDROXYPROPYLPHOSPHONIC+ACID'>S0H</scene>
<table><tr><td colspan='2'>[[1zzb]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptomyces_wedmorensis Streptomyces wedmorensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZZB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZZB FirstGlance]. <br>
|ACTIVITY=  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
|GENE= fom4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=43759 Streptomyces wedmorensis])
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=S0H:(S)-2-HYDROXYPROPYLPHOSPHONIC+ACID'>S0H</scene></td></tr>
|DOMAIN=
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1zzb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zzb OCA], [https://pdbe.org/1zzb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zzb RCSB], [https://www.ebi.ac.uk/pdbsum/1zzb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zzb ProSAT]</span></td></tr>
|RELATEDENTRY=[[1zz6|1ZZ6]], [[1zz7|1ZZ7]], [[1zz8|1ZZ8]], [[1zz9|1ZZ9]], [[1zzc|1ZZC]]
</table>
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zzb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zzb OCA], [http://www.ebi.ac.uk/pdbsum/1zzb PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1zzb RCSB]</span>
== Function ==
}}
[https://www.uniprot.org/uniprot/HPPE_STRWE HPPE_STRWE] Non-heme-dependent dioxygenase that catalyzes the oxidative epoxidation of (S)-2-hydroxypropylphosphonate into (1R,2S)-epoxypropylphosphonate, the final step in the biosynthesis of fosfomycin antibiotic.<ref>PMID:16015285</ref> <ref>PMID:16186494</ref>
== 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/1zzb_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=1zzb ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== 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.


'''Crystal Structure of CoII HppE in Complex with Substrate'''
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>
</div>
<div class="pdbe-citations 1zzb" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
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.
*[[Epoxidase 3D structures|Epoxidase 3D structures]]
 
== References ==
==About this Structure==
<references/>
1ZZB is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Streptomyces_wedmorensis Streptomyces wedmorensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZZB OCA].
__TOC__
 
</StructureSection>
==Reference==
[[Category: Large Structures]]
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:[http://www.ncbi.nlm.nih.gov/pubmed/16015285 16015285]
[[Category: Single protein]]
[[Category: Streptomyces wedmorensis]]
[[Category: Streptomyces wedmorensis]]
[[Category: Drennan, C L.]]
[[Category: Drennan CL]]
[[Category: Higgins, L J.]]
[[Category: Higgins LJ]]
[[Category: Liu, H W.]]
[[Category: Liu HW]]
[[Category: Liu, P.]]
[[Category: Liu P]]
[[Category: Yan, F.]]
[[Category: Yan F]]
[[Category: cupin]]
[[Category: holo-hppe]]
[[Category: mononuclear iron enzyme]]
 
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