Introducing transglycosylation activity in a liquefying alpha-amylase.
FEBS Lett
; 453(1-2): 100-6, 1999 Jun 18.
Article
en En
| MEDLINE
| ID: mdl-10403384
By mutating Ala-289 by Phe or Tyr in the Bacillus stearothermophilus alpha-amylase, we induced this enzyme to perform alcoholytic reactions, a function not present in the wild-type enzyme. This residue was selected from homology analysis with neopullulanase, where the residue has been implicated in the control of transglycosylation [Kuriki et al. (1996) J. Biol. Chem. 271, 17321-173291. We made some inferences about the importance of electrostatic and geometrical modifications in the active site environment of the amylase to explain the behavior of the modified enzyme.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Geobacillus stearothermophilus
/
Glicosiltransferasas
/
Sustitución de Aminoácidos
/
Alfa-Amilasas
Idioma:
En
Revista:
FEBS Lett
Año:
1999
Tipo del documento:
Article
País de afiliación:
México
Pais de publicación:
Reino Unido