Functional Characterization of the slr1944 Gene of Cyanobacterium Synechocystis sp. PCC 6803

Functional Characterization of the slr1944 Gene of Cyanobacterium Synechocystis sp. PCC 6803 The properties of Slr1944 protein encoded by the slr1944 gene and participating in the metabolism of lipophilic compounds in a cyanobacterium Synechocystis were under study. Located in the periplasm, this protein comprises a conserved pentapeptide G-X-S-X-G characteristic of lipases, acetylcholinesterases, and thioesterases. An attempt to delete the gene from the cyanobacterial genome failed; this fact presumes an essential function of Slr1944 protein under the optimum growth conditions. Expression of the slr1944 gene in Escherichia coli cells demonstrated a high affinity of the product for lipophilic compounds. An enhanced slr1944 expression deprived Synechocystis cells of the ability to restore the activity of the photosynthetic electron-transport chain following photoinactivation. The authors believe that Slr1944 participates in the biogenesis of the lipophilic components of photosynthetic complexes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Functional Characterization of the slr1944 Gene of Cyanobacterium Synechocystis sp. PCC 6803

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/B:RUPP.0000047826.13738.e1
Publisher site
See Article on Publisher Site

Abstract

The properties of Slr1944 protein encoded by the slr1944 gene and participating in the metabolism of lipophilic compounds in a cyanobacterium Synechocystis were under study. Located in the periplasm, this protein comprises a conserved pentapeptide G-X-S-X-G characteristic of lipases, acetylcholinesterases, and thioesterases. An attempt to delete the gene from the cyanobacterial genome failed; this fact presumes an essential function of Slr1944 protein under the optimum growth conditions. Expression of the slr1944 gene in Escherichia coli cells demonstrated a high affinity of the product for lipophilic compounds. An enhanced slr1944 expression deprived Synechocystis cells of the ability to restore the activity of the photosynthetic electron-transport chain following photoinactivation. The authors believe that Slr1944 participates in the biogenesis of the lipophilic components of photosynthetic complexes.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Dec 23, 2004

References

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