A COMPARISON OF GENE ORGANIZATION IN THE ZWF REGION OF THE GENOMES OF THE CYANOBACTERIA SYNECHOCOCCUS SP PCC-7942 AND ANABAENA SP PCC-7120
UNSPECIFIED. (1995) A COMPARISON OF GENE ORGANIZATION IN THE ZWF REGION OF THE GENOMES OF THE CYANOBACTERIA SYNECHOCOCCUS SP PCC-7942 AND ANABAENA SP PCC-7120. FEMS MICROBIOLOGY LETTERS, 133 (1-2). pp. 187-193. ISSN 0378-1097Full text not available from this repository.
The region of the genome encoding the glucose-6-phosphate dehydrogenase gene zwf was analysed in a unicellular cyanobacterium, Synechococcus sp. PCC 7942, and a filamentous, heterocystous cyanobacterium, Anabaena sp. PCC 7120. Comparison of cyanobacterial zwf sequences revealed the presence of two absolutely conserved cysteine residues which may be implicated in the light/dark control of enzyme activity. The presence in both strains of a gene fbp, encoding fructose-1,6-bisphosphatase, upstream from zwf strongly suggests that the oxidative pentose phosphate pathway in these organisms may function to completely oxidize glucose 6-phosphate to CO,. The amino acid sequence of fructose-1,6-bisphosphatase does not support the idea of its light activation by a thiol/disulfide exchange mechanism. In the case of Anabaena sp. PCC 7120, the tal gene, encoding transaldolase, lies between zwf and fbp.
|Item Type:||Journal Article|
|Subjects:||Q Science > QR Microbiology|
|Journal or Publication Title:||FEMS MICROBIOLOGY LETTERS|
|Publisher:||ELSEVIER SCIENCE BV|
|Date:||1 November 1995|
|Number of Pages:||7|
|Page Range:||pp. 187-193|
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