Lars Beier
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View article: Roles of PucR, GlnR, and TnrA in Regulating Expression of the <i>Bacillus subtilis</i> <i>ure</i> P3 Promoter
Roles of PucR, GlnR, and TnrA in Regulating Expression of the <i>Bacillus subtilis</i> <i>ure</i> P3 Promoter Open
Expression of the P3 promoter of the Bacillus subtilis ureABC operon is activated during nitrogen-limited growth by PucR, the transcriptional regulator of the purine-degradative genes. Addition of allantoic acid, a purine-degradative inter…
View article: Transcription Analysis of the <i>Bacillus subtilis</i> PucR Regulon and Identification of a <i>cis</i> -Acting Sequence Required for PucR-Regulated Expression of Genes Involved in Purine Catabolism
Transcription Analysis of the <i>Bacillus subtilis</i> PucR Regulon and Identification of a <i>cis</i> -Acting Sequence Required for PucR-Regulated Expression of Genes Involved in Purine Catabolism Open
The PucR protein of Bacillus subtilis has previously been suggested to regulate the expression of 15 genes, pucABCDE , pucFG , pucH , pucI , pucJKLM , pucR , and gde , all of which encode proteins involved in purine catabolism. When cells …
View article: Conversion of the maltogenic α-amylase Novamyl into a CGTase
Conversion of the maltogenic α-amylase Novamyl into a CGTase Open
Novamyl is a thermostable five-domain maltogenic alpha-amylase that shows sequence and structural homology with the cyclodextrin glycosyltransferases (CGTases). Comparing X-ray crystal structures of Novamyl and CGTases, two major differenc…
View article: Electrostatics in the active site of an α‐amylase
Electrostatics in the active site of an α‐amylase Open
The importance of electrostatics in catalysis has been emphasized in the literature for a large number of enzymes. We examined this hypothesis for the Bacillus licheniformis α‐amylase by constructing site‐directed mutants that were predict…