Characterization of the single psbA gene of Prochlorococcus marinus CCMP 1375 (Prochlorophyta)

Plant Mol Biol. 1995 Mar;27(6):1189-96. doi: 10.1007/BF00020892.


DNA sequence, copy number, expression and phylogenetic relevance of the psbA gene from the abundant marine prokaryote P. marinus CCMP 1375 was analyzed. The 7 amino acids near the C-terminus missing in higher plant and in Prochlorothrix hollandica D1 proteins are present in the derived amino acid sequence. P. marinus contains only a single psbA gene. Thus, this organism lacks the ability to adapt its photosystem II by replacement of one type of D1 by another, as several cyanobacteria do. Phylogenetic trees suggested the D1-1 iso-form from Synechococcus PCC 7942 as the next related D1 protein and place P. marinus separately from Prochlorothrix hollandica among the cyanobacteria.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Base Sequence
  • Cyanobacteria / classification
  • Cyanobacteria / genetics*
  • Molecular Sequence Data
  • Photosynthetic Reaction Center Complex Proteins / genetics*
  • Photosystem II Protein Complex
  • Sequence Homology, Amino Acid


  • Photosynthetic Reaction Center Complex Proteins
  • Photosystem II Protein Complex

Associated data

  • GENBANK/Z49201