Disease relevance of rbcL

• Sequence homologies to rbcL genes from other sources clearly indicated a close phylogenetic relationship between the photosynthetic organelles of Cyanophora (cyanelles), green chloroplasts and cyanobacteria [1].
• We have sequenced the Prochlorothrix genes encoding the large and small subunits of ribulose-1,5-bisphosphate carboxylase/oxygenase(rubisco), rbcL and rbcS, for comparison with those of other taxa to assess the phylogenetic relationship of this species [2].

High impact information on rbcL

• Phylogenetic analyses of rbcL and rbcS using Wagner parsimony analysis of deduced amino acid sequences indicate that Prochlorothrix is more closely related to cyanobacteria than to the green plastid lineage [2].
• Although the rbcL gene was adjacent to the atpBE genes and the psbC and psbD genes were adjacent, the arrangement of other genes encoding various polypeptide subunits of protein complexes involved in photosynthetic functions was dissimilar to that observed for known chloroplast genomes [3].
• A cyanobacterial origin of all plastids confirms phylogenetic analyses of 16S rRNA and atpB sequences, but conflicts with those of rbcL and rbcS sequences [4].
• The gene (rbcL) for the large subunit (LSU) of Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) from Cyanophora paradoxa was cloned and the nucleotide sequence determined [1].

References