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A COMPARISON OF GENE ORGANIZATION IN THE ZWF REGION OF THE GENOMES OF THE CYANOBACTERIA SYNECHOCOCCUS SP PCC-7942 AND ANABAENA SP PCC-7120
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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 0378-1097.
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Abstract
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 | ||||
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Subjects: | Q Science > QR Microbiology | ||||
Journal or Publication Title: | FEMS MICROBIOLOGY LETTERS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0378-1097 | ||||
Official Date: | 1 November 1995 | ||||
Dates: |
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Volume: | 133 | ||||
Number: | 1-2 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 187-193 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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