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Título

Redesign of the Phosphate Binding Site of L-Rhamnulose- 1-Phosphate Aldolase towards a Dihydroxyacetone Dependent Aldolase

AutorGarrabou, Xavier; Joglar Tamargo, Jesús; Parella, Teodor; Crehuet, Ramón ; Bujons Vilàs, Jordi; Clapés Saborit, Pere
Palabras claveAldol reaction
Amino aldehydes
Enzyme catalysis
L-rhamnulose-1-phosphate aldolase
Mutagenesis
Fecha de publicación2011
EditorWiley-VCH
CitaciónAdvanced Synthesis and Catalysis
ResumenThe aldol addition of unphosphorylated dihydroxyacetone (DHA) to aldehydes catalyzed by L-rhamnulose-1-phosphate aldolase (RhuA), a dihydroxyacetone phosphate-dependent aldolase, is reported. Moreover, a single point mutation in the phosphate binding site of the RhuA wild type, that is, substitution of aspartate for asparagine at position N29, increased by 3-fold the equation image of aldol addition reactions of DHA to other aldehyde acceptors rather than the natural L-lactaldehyde. The RhuA N29D mutant modified the optimum enzyme design for the natural substrate and changed its catalytic properties making the aldolase more versatile to other aldol additions of DHA.
Versión del editorhttp://dx.doi.org/10.1002/adsc.201000719
URIhttp://hdl.handle.net/10261/46451
DOI10.1002/adsc.201000719
ISSN1615-4150
E-ISSN1615-4169
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