NDLI: The prqA and mvrA Genes Encoding Drug Efflux Proteins Control Resistance to Methyl Viologen in the Cyanobacterium Synechocystis sp. PCC 6803

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The prqA and mvrA Genes Encoding Drug Efflux Proteins Control Resistance to Methyl Viologen in the Cyanobacterium Synechocystis sp. PCC 6803

Content Provider	Springer Nature Link
Author	Nefedova, L. N. Fantin, Yu. S. Zinchenko, V. V. Babykin, M. M.
Copyright Year	2003
Abstract	Derivatives with insertional inactivation of prqA and mvrAgenes were obtained and studied in the Synechocystis sp. PCC 6803 wild-type strain and in the mutant Prq20 resistant to methyl viologen (MV). It was shown that the formation of resistance to MV is associated with the operation of two systems: constitutive and inducible. TheprqAgene encoding drug efflux protein controls the constitutive system of cell resistance to MV. Derepression of the prqA gene is the main reason for an enhanced MV resistance in the Prq20 mutant with impaired repressor function of the PrqR protein. The mvrA gene encoding the transmembrane protein from the family of transporters of sugar and other compounds controls the inducible MV resistance. It is assumed that the MvrA protein is required for efficient elimination from cells of toxic substances formed upon oxidative stress or participates in the repair of membranes destroyed by oxidants. The data obtained demonstrated for the first time that transport systems are involved in the development of MV resistance in photosynthetic organisms.
Starting Page	264
Ending Page	268
Page Count	5
File Format	PDF
ISSN	10227954
Journal	Russian Journal of Genetics
Volume Number	39
Issue Number	3
e-ISSN	16083369
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2003-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics
Content Type	Text
Resource Type	Article
Subject	Genetics

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On the Involvement of the Regulatory Gene prqR in the Development of Resistance to Methyl Viologen in Cyanobacterium Synechocystis sp. PCC 6803

A multidrug efflux response to methyl viologen and acriflavine toxicity in the cyanobacterium Synechocystis sp. PCC6803

Influence of oxidative stressors on the photosynthetic apparatus of the methyl viologen-resistant mutant Prq20 of cyanobacterium Synechocystis sp. PCC 6803

Mutants of Cyanobacterium Synechocystis sp. PCC 6803 with Insertional Inactivation of the sodB Gene Encoding Fe-Superoxide Dismutase

The Effect of Various Stresses on the Expression of Genes Encoding the Secreted Proteins of the Cyanobacterium Synechocystis sp. PCC 6803

Molecular cloning of the genes encoding two chaperone proteins of the cyanobacterium Synechocystis sp. PCC 6803.

Expression of drgA gene encoding NAD(P)H:quinone-oxidoreductase in the cyanobacterium Synechocystis sp. PCC 6803

Studies on hemolysis of hemolysin produced by Synechocystis sp. PCC 6803

On the functional significance of the polypeptide PsbY for photosynthetic water oxidation in the cyanobacterium Synechocystis sp. strain PCC 6803

The prqA and mvrA Genes Encoding Drug Efflux Proteins Control Resistance to Methyl Viologen in the Cyanobacterium Synechocystis sp. PCC 6803

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The prqA and mvrA Genes Encoding Drug Efflux Proteins Control Resistance to Methyl Viologen in the Cyanobacterium Synechocystis sp. PCC 6803