1k2o: Difference between revisions
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== | ==Cytochrome P450Cam with Bound BIS(2,2'-BIPYRIDINE)-(5-METHYL-2-2'-BIPYRIDINE)-C2-ADAMANTANE RUTHENIUM (II)== | ||
<StructureSection load='1k2o' size='340' side='right'caption='[[1k2o]], [[Resolution|resolution]] 1.65Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1k2o]] is a 2 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=1K2O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1K2O 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]] 1.65Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CAC:CACODYLATE+ION'>CAC</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=RFA:DELTA-BIS(2,2-BIPYRIDINE)-(5-METHYL-2-2-BIPYRIDINE)-C2-ADAMANTANE+RUTHENIUM+(II)'>RFA</scene>, <scene name='pdbligand=RFB:LAMBDA-BIS(2,2-BIPYRIDINE)-(5-METHYL-2-2-BIPYRIDINE)-C2-ADAMANTANE+RUTHENIUM+(II)'>RFB</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=1k2o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k2o OCA], [https://pdbe.org/1k2o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1k2o RCSB], [https://www.ebi.ac.uk/pdbsum/1k2o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1k2o 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/k2/1k2o_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=1k2o ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Cytochromes P450 play key roles in drug metabolism and disease by oxidizing a wide variety of natural and xenobiotic compounds. High-resolution crystal structures of P450cam bound to ruthenium sensitizer-linked substrates reveal an open conformation of the enzyme that allows substrates to access the active center via a 22-A deep channel. Interactions of alkyl and fluorinated biphenyl linkers with the channel demonstrate the importance of exploiting protein dynamics for specific inhibitor design. Large changes in peripheral enzyme structure (F and G helices) couple to conformational changes in active center residues (I helix) implicated in proton pumping and dioxygen activation. Common conformational states among P450cam and homologous enzymes indicate that static and dynamic variability in the F/G helix region allows the 54 human P450s to oxidize thousands of substrates. | Cytochromes P450 play key roles in drug metabolism and disease by oxidizing a wide variety of natural and xenobiotic compounds. High-resolution crystal structures of P450cam bound to ruthenium sensitizer-linked substrates reveal an open conformation of the enzyme that allows substrates to access the active center via a 22-A deep channel. Interactions of alkyl and fluorinated biphenyl linkers with the channel demonstrate the importance of exploiting protein dynamics for specific inhibitor design. Large changes in peripheral enzyme structure (F and G helices) couple to conformational changes in active center residues (I helix) implicated in proton pumping and dioxygen activation. Common conformational states among P450cam and homologous enzymes indicate that static and dynamic variability in the F/G helix region allows the 54 human P450s to oxidize thousands of substrates. | ||
Probing the open state of cytochrome P450cam with ruthenium-linker substrates.,Dunn AR, Dmochowski IJ, Bilwes AM, Gray HB, Crane BR Proc Natl Acad Sci U S A. 2001 Oct 23;98(22):12420-5. Epub 2001 Oct 16. PMID:11606730<ref>PMID:11606730</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
[[Category: | <div class="pdbe-citations 1k2o" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Pseudomonas putida]] | [[Category: Pseudomonas putida]] | ||
[[Category: Bilwes AM]] | |||
[[Category: Bilwes | [[Category: Crane BR]] | ||
[[Category: Crane | [[Category: Dmochowski IJ]] | ||
[[Category: Dmochowski | [[Category: Dunn AR]] | ||
[[Category: Dunn | [[Category: Gray HB]] | ||
[[Category: Gray | |||
Latest revision as of 06:21, 13 August 2026
Cytochrome P450Cam with Bound BIS(2,2'-BIPYRIDINE)-(5-METHYL-2-2'-BIPYRIDINE)-C2-ADAMANTANE RUTHENIUM (II)
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