Crystallization, X-ray Diffraction Analysis and Phasing of 17beta-Hydroxysteroid Dehydrogenase from fungus Cochliobolus lunatus (Articolo in rivista)

Type
Label
  • Crystallization, X-ray Diffraction Analysis and Phasing of 17beta-Hydroxysteroid Dehydrogenase from fungus Cochliobolus lunatus (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Cassetta A., Büdefeld T., Lanišsnik Rižner T., Kristan K., Stojan J., Lamba D. (2005)
    Crystallization, X-ray Diffraction Analysis and Phasing of 17beta-Hydroxysteroid Dehydrogenase from fungus Cochliobolus lunatus
    in Acta crystallographica. Section F
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cassetta A., Büdefeld T., Lanišsnik Rižner T., Kristan K., Stojan J., Lamba D. (literal)
Pagina inizio
  • 1032 (literal)
Pagina fine
  • 1034 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 61 (literal)
Rivista
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
  • PubMe (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Büdefeld T., Lanisšnik Rižner T., Kristan K., Stojan J., Institute of Biochemistry, Medical Faculty Ljubljana, Slovenia Cassetta A. IC-CNR, Trieste Lamba D. IC-CNR, Trieste (literal)
Titolo
  • Crystallization, X-ray Diffraction Analysis and Phasing of 17beta-Hydroxysteroid Dehydrogenase from fungus Cochliobolus lunatus (literal)
Abstract
  • 17?-Hydroxysteroid dehydrogenase from the filamentous fungus Cochliobolus lunatus (17?-HSDcl) is an NADP(H)-dependent enzyme that preferentially catalyses the oxidoreduction of oestrogens and androgens. The enzyme belongs to the short-chain dehydrogenase/reductase superfamily and is the only fungal hydroxysteroid dehydrogenase known to date. 17?-HSDcl has recently been characterized and cloned and has been the subject of several functional studies. Although several hypotheses on the physiological role of 17?-HSDcl in fungal metabolism have been formulated, its function is still unclear. An X-ray crystallographic study has been undertaken and the optimal conditions for crystallization of 17?-HSDcl (apo form) were established, resulting in well shaped crystals that diffracted to 1.7 A resolution. The space group was identified as I4(1)22, with unit-cell parameters a = b = 67.14, c = 266.77 A. Phasing was successfully performed by Patterson search techniques. A catalytic inactive mutant Tyr167Phe was also engineered, expressed, purified and crystallized for functional and structural studies. (literal)
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