Novel Promoter Sequence Required for Inductive Expression of theAspergillus nidulansEndoglucanase GeneeglA

Autor: Kengo Shirai, Misako Yokoyama, Naoki Kato, Masashi Kato, Yoshikazu Endo, Tetsuo Kobayashi, Munenori Morimoto, Go Chikamatsu, Norihiro Tsukagoshi
Rok vydání: 2008
Předmět:
Zdroj: Bioscience, Biotechnology, and Biochemistry. 72:312-320
ISSN: 1347-6947
0916-8451
DOI: 10.1271/bbb.70278
Popis: Expression of the eglA gene, encoding for a major endoglucanse EG A in Aspergillus nidulans, is induced by cellulose and cellobiose, but not by xylose. This suggests that induction is independent of XlnR, a transcriptional activator of xylanolytic and cellulolytic genes in Aspergillus. Mutational analysis of the eglA promoter was performed to identify the novel cis-element responsible for XlnR-independent induction. The region spanning -153 to -138 (CCGTACCTTTTTAGGA), designated CeRE(Cellulose Responsive Element), was found to be the upstream activating element essential to inductive expression of the eglA gene.
Databáze: OpenAIRE