View source for 3tkt


==Crystal structure of CYP108D1 from Novosphingobium aromaticivorans DSM12444==
<StructureSection load='3tkt' size='340' side='right'caption='[[3tkt]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3tkt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Novosphingobium_aromaticivorans_DSM_12444 Novosphingobium aromaticivorans DSM 12444]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TKT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3TKT 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=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</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=3tkt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tkt OCA], [https://pdbe.org/3tkt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3tkt RCSB], [https://www.ebi.ac.uk/pdbsum/3tkt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3tkt ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q2G3H6_NOVAD Q2G3H6_NOVAD] 
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== Publication Abstract from PubMed ==
CYP108D1 from Novosphingobium aromaticivorans DSM12444 binds a range of aromatic hydrocarbons such as phenanthrene, biphenyl and phenylcyclohexane. Its structure, which is reported here at 2.2 A resolution, is closely related to that of CYP108A1 (P450terp), an alpha-terpineol-oxidizing enzyme. The compositions and structures of the active sites of these two enzymes are very similar; the most significant changes are the replacement of Glu77 and Thr103 in CYP108A1 by Thr79 and Val105 in CYP108D1. Other residue differences lead to a larger and more hydrophobic access channel in CYP108D1. These structural features are likely to account for the weaker alpha-terpineol binding by CYP108D1 and, when combined with the presence of three hydrophobic phenylalanine residues in the active site, promote the binding of aromatic hydrocarbons. The haem-proximal surface of CYP108D1 shows a different charge distribution and topology to those of CYP101D1, CYP101A1 and CYP108A1, including a pronounced kink in the proximal loop of CYP108D1, which may result in poor complementarity with the [2Fe-2S] ferredoxins Arx, putidaredoxin and terpredoxin that are the respective redox partners of these three P450 enzymes. The unexpectedly low reduction potential of phenylcyclohexane-bound CYP108D1 (-401 mV) may also contribute to the low activity observed with these ferredoxins. CYP108D1 appears to function as an aromatic hydrocarbon hydroxylase that requires a different electron-transfer cofactor protein.

Structure and function of CYP108D1 from Novosphingobium aromaticivorans DSM12444: an aromatic hydrocarbon-binding P450 enzyme.,Bell SG, Yang W, Yorke JA, Zhou W, Wang H, Harmer J, Copley R, Zhang A, Zhou R, Bartlam M, Rao Z, Wong LL Acta Crystallogr D Biol Crystallogr. 2012 Mar;68(Pt 3):277-91. Epub 2012 Feb 14. PMID:22349230<ref>PMID:22349230</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3tkt" style="background-color:#fffaf0;"></div>

==See Also==
*[[Cytochrome P450 3D structures|Cytochrome P450 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Novosphingobium aromaticivorans DSM 12444]]
[[Category: Bartlam M]]
[[Category: Bell SG]]
[[Category: Rao Z]]
[[Category: Wang H]]
[[Category: Wong L-L]]
[[Category: Yang W]]
[[Category: Zhou W]]