6skx

Structure of Reductive Aminase from Neosartorya fumigata

spinqualitylabelsall models 6skx, resolution 2.25Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6skx is a 1 chain structure with sequence from Aspergillus fumigatus Af293. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.25Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q4WDZ8_ASPFU Publication Abstract from PubMed Chiral primary amines are important intermediates in the synthesis of pharmaceutical compounds. Fungal reductive aminases (RedAms) are NADPH-dependent dehydrogenases that catalyse reductive amination of a range of ketones with short-chain primary amines supplied in an equimolar ratio to give corresponding secondary amines. Herein we describe structural and biochemical characterisation as well as synthetic applications of two RedAms from Neosartorya spp. (NfRedAm and NfisRedAm) that display a distinctive activity amongst fungal RedAms, namely a superior ability to use ammonia as the amine partner. Using these enzymes, we demonstrate the synthesis of a broad range of primary amines, with conversions up to >97% and excellent enantiomeric excess. Temperature dependent studies showed that these homologues also possess greater thermal stability compared to other enzymes within this family. Their synthetic applicability is further demonstrated by the production of several primary and secondary amines with turnover numbers (TN) up to 14 000 as well as continous flow reactions, obtaining chiral amines such as (R)-2-aminohexane in space time yields up to 8.1 g L(-1) h(-1). The remarkable features of NfRedAm and NfisRedAm highlight their potential for wider synthetic application as well as expanding the biocatalytic toolbox available for chiral amine synthesis. Asymmetric synthesis of primary amines catalyzed by thermotolerant fungal reductive aminases.,Mangas-Sanchez J, Sharma M, Cosgrove SC, Ramsden JI, Marshall JR, Thorpe TW, Palmer RB, Grogan G, Turner NJ Chem Sci. 2020 May 5;11(19):5052-5057. doi: 10.1039/d0sc02253e. PMID:34122962 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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