1phb: Difference between revisions

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<StructureSection load='1phb' size='340' side='right'caption='[[1phb]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
<StructureSection load='1phb' size='340' side='right'caption='[[1phb]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1phb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_fluorescens_putidus"_flugge_1886 "bacillus fluorescens putidus" flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PHB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PHB FirstGlance]. <br>
<table><tr><td colspan='2'>[[1phb]] 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=1PHB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PHB FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PFZ:1-(N-IMIDAZOLYL)-2-HYDROXY-2-(2,3-DICHLOROPHENYL)OCTANE'>PFZ</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Camphor_5-monooxygenase Camphor 5-monooxygenase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.15.1 1.14.15.1] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=PFZ:1-(N-IMIDAZOLYL)-2-HYDROXY-2-(2,3-DICHLOROPHENYL)OCTANE'>PFZ</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=1phb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1phb OCA], [https://pdbe.org/1phb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1phb RCSB], [https://www.ebi.ac.uk/pdbsum/1phb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1phb ProSAT]</span></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=1phb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1phb OCA], [https://pdbe.org/1phb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1phb RCSB], [https://www.ebi.ac.uk/pdbsum/1phb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1phb ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/CPXA_PSEPU CPXA_PSEPU]] Involved in a camphor oxidation system.  
[https://www.uniprot.org/uniprot/CPXA_PSEPU CPXA_PSEPU] Involved in a camphor oxidation system.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=1phb ConSurf].
</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=1phb ConSurf].
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== Publication Abstract from PubMed ==
The X-ray crystal structures of cytochrome P-450CAM complexed with both enantiomers of a chiral, multifunctional inhibitor have been refined to R-factors of 21.0% [(+)-enantiomer] and 19.6% [(-)-enantiomer] at approximately 2.1-A resolution. Binding of either enantiomer, both considerably larger than the natural substrate camphor, results in similar, dramatic structural changes in the enzyme. In contrast to all previous P-450CAM crystallographic structures, the Tyr96 side chain is not pointing "down" toward the heme but is rather directed "up" into the proposed substrate access channel. This conformational change is accompanied by the displacement of the Phe193 side chain out into the solvent at the enzyme surface. These changes are consistent with the assignment of this region of the enzyme as the access channel [Poulos et al. (1986) Biochemistry 25, 5314-5322] and suggest that several aromatic residues lining the channel may be involved in substrate recognition and channeling to the active site. The cation usually observed coordinated to the Tyr96 carbonyl oxygen is missing in the presence of the (+)-enantiomer but is present with the (-)-enantiomer. The Phe87 side chain, located near the inhibitor binding site, adopts different orientations depending upon which enantiomer is bound. Finally, electron density reveals that although the inhibitor enantiomers were dichlorinated as provided, when bound to P-450CAM the chlorine atoms are present at only 0-20% occupancy, probably reflecting selective binding of impurities in the samples. Coordinates of these inhibited P-450CAM complexes have been deposited in the Brookhaven Protein Data Bank [Bernstein et al. (1977) J. Mol. Biol. 112, 535-542].
Inhibitor-induced conformational change in cytochrome P-450CAM.,Raag R, Li H, Jones BC, Poulos TL Biochemistry. 1993 May 4;32(17):4571-8. PMID:8485133<ref>PMID:8485133</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1phb" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus fluorescens putidus flugge 1886]]
[[Category: Camphor 5-monooxygenase]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Poulos, T L]]
[[Category: Pseudomonas putida]]
[[Category: Poulos TL]]

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