title: Transaldolase genes from the cyanobacteria Anabaena variabilis and Synechocystis sp. PCC 6803: comparison with other eubacterial and eukaryotic homologues.
abstract: We have sequenced and analysed the transaldolase (tal) genes from two cyanobacteria, Anabaena variabilis (ATCC 29413) and Synechocystis sp. PCC 6803, which are filamentous heterocyst-forming and unicellular organisms, respectively. The deduced amino acid sequences of the two cyanobacterial tal genes are 78% identical and are highly homologous to both eubacterial and eukaryotic transaldolases (Escherichia coli, two yeasts, and man) with values ranging from 54 to 60% amino acid identity. In contrast, the transaldolase homologous sequences from the cyanobacterium Nostoc sp. ATCC 29133, from Mycobacterium leprae, and the partial sequence from the higher plant Arabidopsis thaliana have a much lower degree of homology with each other and relative to the sequences mentioned above. These data indicate three different types of transaldolases.
authors.affiliation: Institut für Genetik, Braunschweig, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Köhler
authors.forename: R
authors.initials: R
authors.lastname: Cerff
authors.forename: H
authors.initials: H
authors.lastname: Brinkmann
mesh_terms: D000595:Amino Acid Sequence; D017033:Anabaena / Q000201:enzymology / Q000235:genetics*; D001419:Bacteria / Q000201:enzymology / Q000235:genetics; D001483:Base Sequence; D000458:Cyanobacteria / Q000201:enzymology / Q000235:genetics*; D005798:Genes, Bacterial; D008969:Molecular Sequence Data; D010427:Pentose Phosphate Pathway / Q000235:genetics; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D014153:Transaldolase / Q000145:classification / Q000235:genetics*
chemical_list: D014153:Transaldolase