3nhs

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X-ray Crystallographic Structure Activity Relationship (SAR) of Casimiroin and its Analogs Bound to Human Quinone Reductase 2X-ray Crystallographic Structure Activity Relationship (SAR) of Casimiroin and its Analogs Bound to Human Quinone Reductase 2

Structural highlights

3nhs is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, ,
Gene:NQO2, NMOR2 (HUMAN)
Activity:Ribosyldihydronicotinamide dehydrogenase (quinone), with EC number 1.10.99.2
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[NQO2_HUMAN] The enzyme apparently serves as a quinone reductase in connection with conjugation reactions of hydroquinones involved in detoxification pathways as well as in biosynthetic processes such as the vitamin K-dependent gamma-carboxylation of glutamate residues in prothrombin synthesis.[1]

Publication Abstract from PubMed

An efficient method has been developed to synthesize casimiroin (1), a component of the edible fruit of Casimiroa edulis, on a multigram scale in good overall yield. The route was versatile enough to provide an array of compound 1 analogues that were evaluated as QR2 and aromatase inhibitors. In addition, X-ray crystallography studies of QR2 in complex with compound 1 and one of its more potent analogues has provided insight into the mechanism of action of this new series of QR2 inhibitors. The initial biological investigations suggest that compound 1 and its analogues merit further investigation as potential chemopreventive or chemotherapeutic agents.

Synthesis of Casimiroin and Optimization of Its Quinone Reductase 2 and Aromatase Inhibitory Activities.,Maiti A, Reddy PV, Sturdy M, Marler L, Pegan SD, Mesecar AD, Pezzuto JM, Cushman M J Med Chem. 2009 Mar 6. PMID:19265439[2]

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

References

  1. Calamini B, Santarsiero BD, Boutin JA, Mesecar AD. Kinetic, thermodynamic and X-ray structural insights into the interaction of melatonin and analogues with quinone reductase 2. Biochem J. 2008 Jul 1;413(1):81-91. PMID:18254726 doi:10.1042/BJ20071373
  2. Maiti A, Reddy PV, Sturdy M, Marler L, Pegan SD, Mesecar AD, Pezzuto JM, Cushman M. Synthesis of Casimiroin and Optimization of Its Quinone Reductase 2 and Aromatase Inhibitory Activities. J Med Chem. 2009 Mar 6. PMID:19265439 doi:10.1021/jm801335z

3nhs, resolution 1.78Å

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