1llg

Theoretical Model: The protein structure described on this page was determined theoretically, and hence should be interpreted with caution.

HOMOLOGY MODELLING OF RHO-CRYSTALLIN FROM BULL FROG (RANA CATESBEIANA) LENSHOMOLOGY MODELLING OF RHO-CRYSTALLIN FROM BULL FROG (RANA CATESBEIANA) LENS

Structural highlights For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, PDBsum Publication Abstract from PubMed rho-Crystallins are major protein component found in the eye lenses of frogs of the genus Rana. Structural analysis has indicated that frog rho-crystallins belong to aldo-keto reductase superfamily (AKRs) which include aldehyde and aldose reductases, prostaglandin F synthase and several detoxification enzymes. Members of AKRs catalyze the oxidation-reduction reaction over a range of substrates using NAD(P)(H) as a cofactor. In spite of higher structural similarity with AKRs and cofactor binding affinity, the rho-crystallins were found to be catalytically inactive. This study presents comparative or homology modeling of rho-crystallin from bullfrog (Rana catesbeiana) in presence and absence of cofactor NADP and a competitive inhibitor, testosterone. The predicted models are explored to examine the catalytic cleft, cofactor binding affinity characteristics and substrate binding pocket. Homology modeling of rho-crystallin from bullfrog (Rana catesbeiana) lens.,Zarina S, Zaidi ZH J Mol Graph Model. 2004 Mar;22(4):285-91. PMID:15177080 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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