Proceedings of the Korean Biophysical Society Conference (한국생물물리학회:학술대회논문집)

The Korean Biophysical Society (한국생물물리학회)
권호 표지

Characterization of PpsR, a Transcriptional Repressor of the Expression of Photosysem Gene, from Rhodobacter sphaeroides

  • Cho, Seung-Hyun (Laboratory of Biophysics, School of Biological Sciences, Seoul National University) ;
  • Kang, Sa-Ouk (Laboratory of Biophysics, School of Biological Sciences, Seoul National University)
  • Published : 2002.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

PpsR from the facultative photohetrotroph Rhodobacter sphaeroides is involved in repression of photo system gene expression. SDS-PAGE analysis showed that some portion of PpsR is oxidized so that intra- or inter-disulfide bond is formed between the two cysteins in each subunit. The disulfide bond was reduced by dithiothreitol and the binding activity to puc promoter region was increased.(omitted)

Keywords