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Structural features of the glycogen branching enzyme encoding genes from aspergilli |
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| Authors: | Sasangka Prasetyawan Matsuno Aya Tanaka Akimitsu Akasaka Yuki Suyama Sachie Kano Sumie Miyazaki Makiko Akao Takeshi Kato Masashi Kobayashi Tetsuo Tsukagoshi Norihiro |
| Institution: | aDepartment of Biological Mechanisms and Functions, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Nagoya-shi, Aichi 464-8601, Japan bNational Research Institute of Brewing, 3-7-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan |
| Abstract: | A maltose binding protein, p78, was purified to homogeneity from Aspergillus nidulans by a single column chromatography step on cross-linked amylose. The partial amino acid sequence was highly homologous to the glycogen branching enzymes (GBEs) of human and yeast, and p78 did show branching enzyme activity. The genomic gene and its cDNA encoding GBE (p78) were isolated from the A. nidulans genomic and cDNA libraries. Furthermore, a cDNA encoding A. oryzae GBE was entirely sequenced. A. nidulans GBE shared overall and significant amino acid sequence identity with GBEs from A. oryzae (83.9%), Saccharomyces cerevisiae (61.1%) and human (63.0%), and with starch branching enzymes from green plants (55–56%). |
| Keywords: | Aspergillus nidulans Aspergillus oryzae glycogen branching enzyme |
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