4j03

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Crystal structure of human soluble epoxide hydrolase complexed with fulvestrantCrystal structure of human soluble epoxide hydrolase complexed with fulvestrant

Structural highlights

4j03 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.92Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

HYES_HUMAN Bifunctional enzyme. The C-terminal domain has epoxide hydrolase activity and acts on epoxides (alkene oxides, oxiranes) and arene oxides. Plays a role in xenobiotic metabolism by degrading potentially toxic epoxides. Also determines steady-state levels of physiological mediators. The N-terminal domain has lipid phosphatase activity, with the highest activity towards threo-9,10-phosphonooxy-hydroxy-octadecanoic acid, followed by erythro-9,10-phosphonooxy-hydroxy-octadecanoic acid, 12-phosphonooxy-octadec-9Z-enoic acid, 12-phosphonooxy-octadec-9E-enoic acid, and p-nitrophenyl phospate.[1] [2]

Publication Abstract from PubMed

The soluble epoxide hydrolase (sEH) is a key enzyme in the metabolism of epoxy-fatty acids, signaling molecules involved in numerous biologies. Toward finding novel inhibitors of sEH, a library of known drugs was tested for inhibition of sEH. We found that fulvestrant, an anticancer agent, is a potent (KI=26nM) competitive inhibitor of sEH. From this observation, we found that alkyl-sulfoxides represent a new kind of pharmacophore for the inhibition of sEH.

Inhibition of soluble epoxide hydrolase by fulvestrant and sulfoxides.,Morisseau C, Pakhomova S, Hwang SH, Newcomer ME, Hammock BD Bioorg Med Chem Lett. 2013 Jul 1;23(13):3818-21. doi: 10.1016/j.bmcl.2013.04.083., Epub 2013 May 6. PMID:23684894[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. ↑ Cronin A, Mowbray S, Durk H, Homburg S, Fleming I, Fisslthaler B, Oesch F, Arand M. The N-terminal domain of mammalian soluble epoxide hydrolase is a phosphatase. Proc Natl Acad Sci U S A. 2003 Feb 18;100(4):1552-7. Epub 2003 Feb 6. PMID:12574508 doi:10.1073/pnas.0437829100
  2. ↑ Newman JW, Morisseau C, Harris TR, Hammock BD. The soluble epoxide hydrolase encoded by EPXH2 is a bifunctional enzyme with novel lipid phosphate phosphatase activity. Proc Natl Acad Sci U S A. 2003 Feb 18;100(4):1558-63. Epub 2003 Feb 6. PMID:12574510 doi:10.1073/pnas.0437724100
  3. ↑ Morisseau C, Pakhomova S, Hwang SH, Newcomer ME, Hammock BD. Inhibition of soluble epoxide hydrolase by fulvestrant and sulfoxides. Bioorg Med Chem Lett. 2013 Jul 1;23(13):3818-21. doi: 10.1016/j.bmcl.2013.04.083., Epub 2013 May 6. PMID:23684894 doi:10.1016/j.bmcl.2013.04.083

4j03, resolution 2.92Å

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