Bacteriophage T5-induced Endonucleases That Introduce Site-specific Single-chain Interruptions in Duplex DNA
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Four site-specific endodeoxyribonucleases have been partially purified from extracts of bacteriophage T5-infected Escherichia coli by gel filtration and affinity chromatography on single- and double-stranded DNA. The enzymes were detected and characterized by agarose gel electrophoresis of alkali-denatured digestion products. None of the four is found in uninfected cells. In the presence of a divalent cation, all four endonucleases make ligase-repairable, single-chain interruptions at specific sites in the duplex DNA of several bacteriophages (lambda, T7, and T5) and a mammalian virus (adenovirus 2). These activities are not stimulated by ATP. None of the four is active on single-stranded DNA. The fragments produced by each enzyme from ligase-repaired T5 DNA do not correspond to those derived from mature T5 DNA. Each of the enzymes is able to cleave the intact strand of T5 DNA.
Smith S, Reuven N, Mohni K, Schumacher A, Weller S J Virol. 2014; 88(17):10146-56.
PMID: 24965466 PMC: 4136335. DOI: 10.1128/JVI.01723-14.
Identification of host receptor and receptor-binding module of a newly sequenced T5-like phage EPS7.
Hong J, Kim K, Heu S, Lee S, Adhya S, Ryu S FEMS Microbiol Lett. 2008; 289(2):202-9.
PMID: 19025561 PMC: 9021807. DOI: 10.1111/j.1574-6968.2008.01397.x.
Structure-specific DNA binding by bacteriophage T5 5'-->3' exonuclease.
Garforth S, Sayers J Nucleic Acids Res. 1997; 25(19):3801-7.
PMID: 9380501 PMC: 146983. DOI: 10.1093/nar/25.19.3801.
New deletion mutant of bacteriophage T5.
Rhoades M, Schwartz J, Wahl J J Virol. 1980; 36(2):622-6.
PMID: 7431490 PMC: 353684. DOI: 10.1128/JVI.36.2.622-626.1980.
A bacteriophage T5 mutant with an increased frequency of single-chain interruptions.
Rhoades M J Virol. 1984; 51(2):553-5.
PMID: 6086964 PMC: 254472. DOI: 10.1128/JVI.51.2.553-555.1984.