期刊
BIOTECHNOLOGY AND BIOENGINEERING
卷 109, 期 7, 页码 1881-1886出版社
WILEY-BLACKWELL
DOI: 10.1002/bit.24432
关键词
reporter gene; archaea; Sulfolobus; ss-glucuronidase
Mesophilic glucuronidases are the most widely used reporters of gene expression in plants, but unsuitable as reporters in (hyper-)thermophiles due their insufficient thermal stability. Here we present the native 66.8?kDa thermostable beta-glucuronidase of Sulfolobus solfataricus. The enzyme activity is characterized in a wide temperature range ideal for, but not limited to, in vivo genetic study of hyperthermophiles. As a proof of concept, we demonstrate its use as a reporter of gene expression in Sulfolobus, by monitoring a promoter fusion created with the beta-glucuronidase coding gene gusB and a copper-responsive promoter. Biotechnol. Bioeng. 2012; 109:18811886. (C) 2012 Wiley Periodicals, Inc.
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