Deoxyribonucleic Acid Degradation and the Lethal Effect by Myxin in Escherichia coli
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چکیده
منابع مشابه
Phleomycin-stimulated degradation of deoxyribonucleic acid in Escherichia coli.
Phleomycin stimulates the degradation of DNA by energy-dependent endonuclease and exonuclease reactions in Escherichia coli rec(+) cells and in recB(-) and recC(-) cells that lack an adenosine triphosphate-dependent nuclease functioning in the repair of ultraviolet (UV) lesions. Exonuclease activity is blocked in T4 phage-infected cells. The endonuclease reaction produces 10(7)-dalton segments ...
متن کاملDegradation of enteric bacterial deoxyribonucleic acid by the Escherichia coli B restriction endonuclease.
The deoxyribonucleic acid of five different genera of enteric microorganisms was shown to be degraded by the Escherichia coli B restriction endonuclease.
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INTRODUCTION............................................................ 61 PROCESSING OF DAMAGED DNA ............................................................ 61 SOS REGULATORY NETWORK ............................................................. 61 Present Model for SOS Regulation ............................................................ 62 SOS Responses ...................................
متن کاملDeoxyribonucleic acid repair in vitro by extracts of Escherichia coli.
Deoxyribonucleic acid (DNA) from bacteriophage T7 has been used to monitor the capacity of gently lysed extracts of Escherichia coli to perform repair resynthesis after ultraviolet (UV) irradiation. Purified DNA damaged by up to 100 J of UV radiation per m2 was treated with an endonuclease from Micrococcus luteus that introduces single-strand breaks in irradiated DNA. This DNA was then used as ...
متن کاملDeoxyribonucleic Acid Polymerase III of Escherichia coli
DNA polymerase III has been purified 4,500-fold from the Escherichia coli mutant, HMS83, which lacks DNA polymerases I and II. When subjected to disc gel electrophoresis, the most purified fraction exhibits a single major protein band from which enzymatic activity may be recovered. Polyacrylamide gel electrophoresis under denaturing conditions produces two protein bands with molecular weights o...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1972
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.109.1.250-261.1972