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Open AccessJournal ArticleDOI

6-(p-Hydroxyphenylazo)-uracil: A Selective Inhibitor of Host DNA Replication in Phage-Infected Bacillus subtilis

Neal C. Brown
- 01 Nov 1970 - 
- Vol. 67, Iss: 3, pp 1454-1461
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TLDR
The azopyrimidine, 6-(p-hydroxyphenylazo)-uracil, inhibits the replication of bacterial DNA selectively, completely, and reversibly, and has no apparent effects on the metabolism of other cellular macromolecules thus far examined.
Abstract
The azopyrimidine, 6-(p-hydroxyphenylazo)-uracil, inhibits the replication of bacterial DNA selectively, completely, and reversibly, and has no apparent effects on the metabolism of other cellular macromolecules thus far examined. The mechanism of its action has been investigated in uninfected and phage-infected Bacillus subtilis, and the compound appears to be specific for a host function. In cells infected with virulent phage the synthesis of phage DNA proceeds normally, while residual host DNA synthesis is completely blocked. The drug-sensitive host site retains its sensitivity even after partial disruption of the cell by lysozyme treatment.

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Journal ArticleDOI

Nutritional control of elongation of DNA replication by (p)ppGpp.

TL;DR: This work characterized a mechanism that regulates replication elongation in the bacterium Bacillus subtilis and found that small nucleotides ppGpp and pppGpp, which are induced upon starvation, appeared to inhibit replication directly by inhibiting primase, an essential component of the replication machinery.
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Antibiotic-induced replication stress triggers bacterial competence by increasing gene dosage near the origin

TL;DR: The data suggest that evolution has conserved the oriC-proximal location of important genes in bacteria to allow for a robust response to replication stress without the need for complex gene-regulatory pathways.
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Bacteriophages of Bacillus subtilis.

TL;DR: This article corrects the article on p. 298 in vol.
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Bacillus subtilis Phage φ 29 Characterization of Gene Products and Functions

TL;DR: A total of 22 phi29-induced proteins have been resolved by slab gel electrophoresis; two of these proteins are the precursor and product fragment, respectively, in the synthesis of the neck appendage protein of the phage.
Journal ArticleDOI

Architecture and conservation of the bacterial DNA replication machinery, an underexploited drug target.

TL;DR: This review assesses similarities and differences in replication components and mechanisms across the bacteria, highlight current progress towards the discovery of novel replication inhibitors, and suggest those aspects of the replication machinery that have the greatest potential as drug targets.
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