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OVERPRODUCTION OF SSB PROTEIN ENHANCES THE CAPACITY FOR PHOTOREPAIR IN Escherichia coli recA CELLS
Author(s) -
LERŠ NELLA,
SALAJŠMIC ERIKA,
TRGOVČEVIĆ ŽELJKO
Publication year - 1989
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1989.tb04100.x
Subject(s) - overproduction , escherichia coli , microbiology and biotechnology , chemistry , sos response , biology , biochemistry , gene
We studied photoreactivation in cells carrying the multicopy ssb + plasmid. These cells overproduce single‐stranded DNA‐binding protein (SSB). Overproduction of SSB enhances the capacity for photoreactivation in recA bacteria but not in the recA + background. It is suggested that, in recA cells, SSB binds to the dimer region of DNA and that this binding stimulates the process of photoreactivation. In recA + cells, the same stimulation might be achieved by RecA protein.