Photoprotection of ultraviolet light irradiated E. Coli. B/r cells.
Ultraviolet irradiated E. Coli. B/r cells recover from UV damage when the cells are kept in dark due to dark repair mechanism. Photoprotection by illumination of the cells in near UV light prior to the exposure to UV light increases the capacity of the cells to induce L-arabinose isomerase synthesis in response to inducer, L-arabinose. The survival of the cells is dependent on the UV dose. The increased synthesis of L-arabinose isomerase after photoprotection is due to the amount of cyclic AMP in the cells.
School of Biochemistry, D.A. University, Indore.
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Bhatnagar
D019747:Aldose-Ketose Isomerases; D002238:Carbohydrate Epimerases / Q000096:biosynthesis*; D004794:Enzyme Repression; D004926:Escherichia coli / Q000201:enzymology / Q000528:radiation effects*; D015964:Gene Expression Regulation, Bacterial; D011835:Radiation Protection; D014466:Ultraviolet Rays / Q000009:adverse effects*
D002238:Carbohydrate Epimerases; D019747:Aldose-Ketose Isomerases; C019715:L-arabinose isomerase