Domain structure of HelD, an interaction partner of Bacillus subtilis RNA polymerase

. 2019 May ; 593 (9) : 996-1005. [epub] 20190423

Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid30972737

The HelD is a helicase-like protein binding to Bacillus subtilis RNA polymerase (RNAP), stimulating transcription in an ATP-dependent manner. Here, our small angle X-ray scattering data bring the first insights into the HelD structure: HelD is compact in shape and undergoes a conformational change upon substrate analog binding. Furthermore, the HelD domain structure is delineated, and a partial model of HelD is presented. In addition, the unique N-terminal domain of HelD is characterized as essential for its transcription-related function but not for ATPase activity, DNA binding, or binding to RNAP. The study provides a topological basis for further studies of the role of HelD in transcription.

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