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http://purl.uniprot.org/citations/19237748http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/19237748http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/19237748http://www.w3.org/2000/01/rdf-schema#comment"3(17)alpha-Hydroxysteroid dehydrogenase (AKR1C21) is a unique member of the aldo-keto reductase (AKR) superfamily owing to its ability to reduce 17-ketosteroids to 17alpha-hydroxysteroids, as opposed to other members of the AKR family, which can only produce 17beta-hydroxysteroids. In this paper, the crystal structure of a double mutant (G225P/G226P) of AKR1C21 in complex with the coenzyme NADP(+) and the inhibitor hexoestrol refined at 2.1 A resolution is presented. Kinetic analysis and molecular-modelling studies of 17alpha- and 17beta-hydroxysteroid substrates in the active site of AKR1C21 suggested that Gly225 and Gly226 play an important role in determining the substrate stereospecificity of the enzyme. Additionally, the G225P/G226P mutation of the enzyme reduced the affinity (K(m)) for both 3alpha- and 17alpha-hydroxysteroid substrates by up to 160-fold, indicating that these residues are critical for the binding of substrates."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.org/dc/terms/identifier"doi:10.1107/s0907444908044028"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.org/dc/terms/identifier"doi:10.1107/s0907444908044028"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Endo S."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Endo S."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Hara A."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Hara A."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Dhagat U."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Dhagat U."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"El-Kabbani O."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"El-Kabbani O."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Mamiya H."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/author"Mamiya H."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/date"2009"xsd:gYear
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/date"2009"xsd:gYear
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/name"Acta Crystallogr. D"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/name"Acta Crystallogr. D"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/pages"257-265"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/pages"257-265"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/title"Structure of the G225P/G226P mutant of mouse 3(17)alpha-hydroxysteroid dehydrogenase (AKR1C21) ternary complex: implications for the binding of inhibitor and substrate."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/title"Structure of the G225P/G226P mutant of mouse 3(17)alpha-hydroxysteroid dehydrogenase (AKR1C21) ternary complex: implications for the binding of inhibitor and substrate."xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/volume"65"xsd:string
http://purl.uniprot.org/citations/19237748http://purl.uniprot.org/core/volume"65"xsd:string