3fwi: Difference between revisions

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[[Image:3fwi.png|left|200px]]


{{STRUCTURE_3fwi| PDB=3fwi | SCENE= }}
==Ferric camphor bound Cytochrome P450cam containing a selenocysteine as the 5th heme ligand, tetragonal crystal form==
<StructureSection load='3fwi' size='340' side='right'caption='[[3fwi]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3fwi]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_putida Pseudomonas putida]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FWI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FWI 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]] 2.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CAM:CAMPHOR'>CAM</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</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=3fwi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fwi OCA], [https://pdbe.org/3fwi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fwi RCSB], [https://www.ebi.ac.uk/pdbsum/3fwi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fwi ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CPXA_PSEPU CPXA_PSEPU] Involved in a camphor oxidation system.
== 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/fw/3fwi_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=3fwi ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The unique monooxygenase activity of cytochrome P450cam has been attributed to coordination of a cysteine thiolate to the heme cofactor. To investigate this interaction, we replaced cysteine with the more electron-donating selenocysteine. Good yields of the selenoenzyme were obtained by bacterial expression of an engineered gene containing the requisite UGA codon for selenocysteine and a simplified yet functional selenocysteine insertion sequence (SECIS). The sulfur-to-selenium substitution subtly modulates the structural, electronic, and catalytic properties of the enzyme. Catalytic activity decreases only 2-fold, whereas substrate oxidation becomes partially uncoupled from electron transfer, implying a more complex role for the axial ligand than generally assumed.


===Ferric camphor bound Cytochrome P450cam containing a selenocysteine as the 5th heme ligand, tetragonal crystal form===
Probing the role of the proximal heme ligand in cytochrome P450cam by recombinant incorporation of selenocysteine.,Aldag C, Gromov IA, Garcia-Rubio I, von Koenig K, Schlichting I, Jaun B, Hilvert D Proc Natl Acad Sci U S A. 2009 Mar 17. PMID:19293375<ref>PMID:19293375</ref>


{{ABSTRACT_PUBMED_19293375}}
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
==About this Structure==
<div class="pdbe-citations 3fwi" style="background-color:#fffaf0;"></div>
[[3fwi]] is a 1 chain structure of [[Cytochrome P450]] with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_putida Pseudomonas putida]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FWI OCA].


==See Also==
==See Also==
*[[Cytochrome P450|Cytochrome P450]]
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:019293375</ref><references group="xtra"/>
__TOC__
[[Category: Camphor 5-monooxygenase]]
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas putida]]
[[Category: Pseudomonas putida]]
[[Category: Aldag, C.]]
[[Category: Aldag C]]
[[Category: Hilvert, D.]]
[[Category: Hilvert D]]
[[Category: Koenig, K von.]]
[[Category: Schlichting I]]
[[Category: Schlichting, I.]]
[[Category: Von Koenig K]]
[[Category: Cytochrome]]
[[Category: Cytochrome p450]]
[[Category: Heme]]
[[Category: Hemoprotein]]
[[Category: Iron]]
[[Category: Metal-binding]]
[[Category: Monooxygenase]]
[[Category: Oxidoreductase]]
[[Category: Selenocysteine]]

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