PMID: 2111229Mar 1, 1990Paper

The psbA-gene from a red alga resembles those from cyanobacteria and cyanelles

Current Genetics
U MaidK Zetsche

Abstract

Plastid DNA (ptDNA) from the unicellular red alga Cyanidium caldarium was isolated. A 5.8 kb Eco RI, fragment containing the entire psbA-gene was cloned and the nucleotide sequence of the psbA-gene determined. At the carboxyl terminus the encoded protein (D1) contains the seven amino acid-insertion which was found to be typical of the cyanobacteria and the cyanelles of Cyanophora paradoxa. However, the overall sequence homology does not support a direct relationship between the plastids of Cyanidium, cyanelles and the cyanobacteria. As in other photosynthetic organisms the psbA-gene is transcribed as a monocistronic mRNA. The ribosomal RNA operon was located 4 kb upstream of the psbA-gene.

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Citations

Feb 1, 1992·Plant Molecular Biology·U KesslerK Zetsche
Nov 1, 1990·Molecular & General Genetics : MGG·C B MichalowskiH J Bohnert
Jul 1, 1991·Current Genetics·T WinhauerK Zetsche
Jan 1, 1992·Bio Systems·C W MordenJ D Palmer
Nov 1, 1992·Trends in Ecology & Evolution·C J HoweP J Lockhart

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