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[[Image:1nml.jpg|left|200px]]
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{{STRUCTURE_1nml|  PDB=1nml  |  SCENE=  }}
'''Di-haemic Cytochrome c Peroxidase from Pseudomonas nautica 617, form IN (pH 4.0)'''


==Di-haemic Cytochrome c Peroxidase from Pseudomonas nautica 617, form IN (pH 4.0)==
<StructureSection load='1nml' size='340' side='right'caption='[[1nml]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1nml]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Marinobacter_nauticus Marinobacter nauticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NML OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NML 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]] 2.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</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=1nml FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nml OCA], [https://pdbe.org/1nml PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nml RCSB], [https://www.ebi.ac.uk/pdbsum/1nml PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nml ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/P83787_MARNT P83787_MARNT]
== 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/nm/1nml_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1nml ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cytochrome c peroxidase (CCP) catalyses the reduction of H(2)O(2) to H(2)O, an important step in the cellular detoxification process. The crystal structure of the di-heme CCP from Pseudomonas nautica 617 was obtained in two different conformations in a redox state with the electron transfer heme reduced. Form IN, obtained at pH 4.0, does not contain Ca(2+) and was refined at 2.2 A resolution. This inactive form presents a closed conformation where the peroxidatic heme adopts a six-ligand coordination, hindering the peroxidatic reaction from taking place. Form OUT is Ca(2+) dependent and was crystallized at pH 5.3 and refined at 2.4 A resolution. This active form shows an open conformation, with release of the distal histidine (His71) ligand, providing peroxide access to the active site. This is the first time that the active and inactive states are reported for a di-heme peroxidase.


==Overview==
Structural basis for the mechanism of Ca(2+) activation of the di-heme cytochrome c peroxidase from Pseudomonas nautica 617.,Dias JM, Alves T, Bonifacio C, Pereira AS, Trincao J, Bourgeois D, Moura I, Romao MJ Structure. 2004 Jun;12(6):961-73. PMID:15274917<ref>PMID:15274917</ref>
Cytochrome c peroxidase (CCP) catalyses the reduction of H(2)O(2) to H(2)O, an important step in the cellular detoxification process. The crystal structure of the di-heme CCP from Pseudomonas nautica 617 was obtained in two different conformations in a redox state with the electron transfer heme reduced. Form IN, obtained at pH 4.0, does not contain Ca(2+) and was refined at 2.2 A resolution. This inactive form presents a closed conformation where the peroxidatic heme adopts a six-ligand coordination, hindering the peroxidatic reaction from taking place. Form OUT is Ca(2+) dependent and was crystallized at pH 5.3 and refined at 2.4 A resolution. This active form shows an open conformation, with release of the distal histidine (His71) ligand, providing peroxide access to the active site. This is the first time that the active and inactive states are reported for a di-heme peroxidase.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1NML is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Marinobacter_hydrocarbonoclasticus Marinobacter hydrocarbonoclasticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NML OCA].
</div>
<div class="pdbe-citations 1nml" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Structural basis for the mechanism of Ca(2+) activation of the di-heme cytochrome c peroxidase from Pseudomonas nautica 617., Dias JM, Alves T, Bonifacio C, Pereira AS, Trincao J, Bourgeois D, Moura I, Romao MJ, Structure. 2004 Jun;12(6):961-73. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15274917 15274917]
*[[Cytochrome c peroxidase 3D structures|Cytochrome c peroxidase 3D structures]]
[[Category: Cytochrome-c peroxidase]]
== References ==
[[Category: Marinobacter hydrocarbonoclasticus]]
<references/>
[[Category: Single protein]]
__TOC__
[[Category: Alves, T.]]
</StructureSection>
[[Category: Bonifacio, C.]]
[[Category: Large Structures]]
[[Category: Bourgeois, D.]]
[[Category: Marinobacter nauticus]]
[[Category: Dias, J M.]]
[[Category: Alves T]]
[[Category: Moura, I.]]
[[Category: Bonifacio C]]
[[Category: Pereira, A S.]]
[[Category: Bourgeois D]]
[[Category: Romao, M J.]]
[[Category: Dias JM]]
[[Category: Di-haem]]
[[Category: Moura I]]
[[Category: Electron transport]]
[[Category: Pereira AS]]
[[Category: Oxidoreductase]]
[[Category: Romao MJ]]
[[Category: Peroxidase]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 02:42:48 2008''

Latest revision as of 07:05, 30 October 2024

Di-haemic Cytochrome c Peroxidase from Pseudomonas nautica 617, form IN (pH 4.0)

1nml, resolution 2.20Å

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