Crossref journal-article
Wiley
European Journal of Biochemistry (311)
Abstract

Purified DNA‐dependent RNA polymerase from Sulfolobus acidocaldarius is composed of 10 different subunits, one of which is present as four copies. Their molecular weights are 122000, 101000, 44000, 32000, 24000, 17500, 13800, 11800 (four copies), 11200, 10800, summing up to a total Mr of 423500. The sedimentation velocity is 13.5 S, indicating that at 0.5 M NH4Cl the enzyme exists in the monomeric form. At pH 9.2 in cellogel electrophoresis two of the subunits migrate towards the cathode. The composition is quite different from that of a typical eubacterial RNA polymerase. Its complexity reminds one of eucaryotic RNA polymerase.Maximal transcription of DNA from a Halobacterium halobium phage φH (φH DNA) proceeds at pH 8.5 and 75 °C. The enzyme is stable up to 75 °C and strictly requires a DNA template. φH DNA and poly[d(A‐T) · d(A‐T)] are the most efficient. The temperature dependence of the transcription rate is characteristic for the template. Actinomycin D and heparin prevent transcription, while rifampicin, streptolydigin and α‐amanitin have no effect.During storage, even at −70°C, the enzyme loses its activity to transcribe φH DNA, whereas transcription of poly[d(A‐T) · d(A‐T)] remains unaffected.

Bibliography

ZILLIG, W., STETTER, K. O., & JANEKOVIĆ, D. (1979). DNA‐Dependent RNA Polymerase from the Archaebacterium Sulfolobus acidocaldarius. European Journal of Biochemistry, 96(3), 597–604. Portico.

Authors 3
  1. Wolfram ZILLIG (first)
  2. Karl O. STETTER (additional)
  3. Davorin JANEKOVIĆ (additional)
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Dates
Type When
Created 20 years, 5 months ago (March 3, 2005, 2:57 p.m.)
Deposited 1 year, 9 months ago (Nov. 23, 2023, 4:20 p.m.)
Indexed 3 months, 1 week ago (May 18, 2025, 10:24 a.m.)
Issued 46 years, 2 months ago (June 1, 1979)
Published 46 years, 2 months ago (June 1, 1979)
Published Online 17 years, 2 months ago (June 28, 2008)
Published Print 46 years, 2 months ago (June 1, 1979)
Funders 0

None

@article{ZILLIG_1979, title={DNA‐Dependent RNA Polymerase from the Archaebacterium Sulfolobus acidocaldarius}, volume={96}, ISSN={1432-1033}, url={http://dx.doi.org/10.1111/j.1432-1033.1979.tb13074.x}, DOI={10.1111/j.1432-1033.1979.tb13074.x}, number={3}, journal={European Journal of Biochemistry}, publisher={Wiley}, author={ZILLIG, Wolfram and STETTER, Karl O. and JANEKOVIĆ, Davorin}, year={1979}, month=jun, pages={597–604} }