1vnc: Difference between revisions

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New page: left|200px<br /><applet load="1vnc" size="450" color="white" frame="true" align="right" spinBox="true" caption="1vnc, resolution 2.1Å" /> '''CHLOROPEROXIDASE FROM...
 
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[[Image:1vnc.gif|left|200px]]<br /><applet load="1vnc" size="450" color="white" frame="true" align="right" spinBox="true"
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'''CHLOROPEROXIDASE FROM THE FUNGUS CURVULARIA INAEQUALIS'''<br />


==Overview==
==CHLOROPEROXIDASE FROM THE FUNGUS CURVULARIA INAEQUALIS==
The chloroperoxidase (EC 1.11.1.-) from the fungus Curvularia inaequalis, belongs to a class of vanadium enzymes that oxidize halides in the, presence of hydrogen peroxide to the corresponding hypohalous acids. The, 2.1 A crystal structure (R = 20%) of an azide chloroperoxidase complex, reveals the geometry of the catalytic vanadium center. Azide coordinates, directly to the metal center, resulting in a structure with azide, three, nonprotein oxygens, and a histidine as ligands. In the native state, vanadium will be bound as hydrogen vanadate(V) in a trigonal bipyramidal, coordination with the metal coordinated to three oxygens in the equatorial, plane, to the OH group at one apical position, and to the epsilon 2, nitrogen of a histidine at the other apical position. The protein fold is, mainly alpha-helical with two four-helix bundles as main structural motifs, and an overall structure different from other structures. The helices pack, together to a compact molecule, which explains the high stability of the, protein. An amino acid sequence comparison with vanadium-containing, bromoperoxidase from the seaweed Ascophyllum nodosum shows high, similarities in the regions of the metal binding site, with all hydrogen, vanadate(V) interacting residues conserved except for lysine-353, which is, an asparagine.
<StructureSection load='1vnc' size='340' side='right'caption='[[1vnc]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1vnc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Curvularia_inaequalis Curvularia inaequalis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VNC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1VNC FirstGlance]. <br>
</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>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AZI:AZIDE+ION'>AZI</scene>, <scene name='pdbligand=VO4:VANADATE+ION'>VO4</scene></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=1vnc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vnc OCA], [https://pdbe.org/1vnc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1vnc RCSB], [https://www.ebi.ac.uk/pdbsum/1vnc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1vnc ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PRXC_CURIN PRXC_CURIN]
== 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/vn/1vnc_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=1vnc ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
1VNC is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Curvularia_inaequalis Curvularia inaequalis] with VO4 and AZI as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Chloride_peroxidase Chloride peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.10 1.11.1.10] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1VNC OCA].
*[[Haloperoxidase|Haloperoxidase]]
 
__TOC__
==Reference==
</StructureSection>
X-ray structure of a vanadium-containing enzyme: chloroperoxidase from the fungus Curvularia inaequalis., Messerschmidt A, Wever R, Proc Natl Acad Sci U S A. 1996 Jan 9;93(1):392-6. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8552646 8552646]
[[Category: Chloride peroxidase]]
[[Category: Curvularia inaequalis]]
[[Category: Curvularia inaequalis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Messerschmidt, A.]]
[[Category: Messerschmidt A]]
[[Category: Wever, R.]]
[[Category: Wever R]]
[[Category: AZI]]
[[Category: VO4]]
[[Category: oxidoreductase]]
[[Category: vanadium-containing haloperoxidase]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 04:57:47 2007''

Latest revision as of 11:46, 14 February 2024

CHLOROPEROXIDASE FROM THE FUNGUS CURVULARIA INAEQUALISCHLOROPEROXIDASE FROM THE FUNGUS CURVULARIA INAEQUALIS

Structural highlights

1vnc is a 1 chain structure with sequence from Curvularia inaequalis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.1Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PRXC_CURIN

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

1vnc, resolution 2.10Å

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