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. 1980 May;34(2):347–353. doi: 10.1128/jvi.34.2.347-353.1980

Bacteriophage phi W-14-infected Pseudomonas acidovorans synthesizes hydroxymethyldeoxyuridine triphosphate.

J Neuhard, K L Maltman, R A Warren
PMCID: PMC288711  PMID: 7373713

Abstract

The infection of Pseudomonas acidovorans with bacteriophage phi W-14 leads to the gradual disappearance of dTTP from the cells and to the appearance of hydroxymethy dUTP (hmdUTP). Infected-cell contain dUMP hydroxymethylase and activities converting hmdUMP to humdUDP and hmdUTP. Hydroxymethylase appears immediately after infection, reaching a maximum 20 min later. Thymidylate synthase activity decreases to less than 10% of the preinfection level during the initial 40 min after infection. Newly replicated DNA contains 2 to 3% hydroxymethyluracil. Although uracil is released from newly replicated DNA by acid hydrolysis, uracil is not incorporated as such into phi W-14 DNA, and dUTP is not present in the acid-soluble pool of infected cells. It is concluded that the thymine and alpha-putrescinylthymine in phi W-14 DNA are formed from hydroxymethyluracil at the polynucleotide level and that an intermediate in one or both of these conversions is degraded to uracil by acid hydrolysis. The modification of hydroxymethyluracil is coupled tightly to replication.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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