Skowron MA, Zebrowska J, Wegrzyn G, Skowron PM. MmoSTI restriction endonuclease, isolated from Morganella morganii infecting a tropical moth, Actias selene, cleaving 5'-|CCNGG-3' sequences.
J Appl Genet 2015;
57:143-9. [PMID:
26280518 PMCID:
PMC4731440 DOI:
10.1007/s13353-015-0308-3]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 06/04/2015] [Accepted: 07/22/2015] [Indexed: 12/02/2022]
Abstract
A type II restriction endonuclease, MmoSTI, from the pathogenic bacterium Morganella morganii infecting a tropical moth, Actias selene, has been detected and biochemically characterized, as a potential etiological differentiation factor. The described REase recognizes interrupted palindromes, i.e., 5′-CCNGG-3′ sequences and cleaves DNA leaving 5-nucleotide (nt) long, single-stranded (ss), 5′-cohesive ends, which was determined by three complementary methods: (i) cleavage of custom and standard DNA substrates, (ii) run-off sequencing of cleavage products, and (iii) shotgun cloning and sequencing of bacteriophage lambda (λ) DNA digested with MmoSTI. MmoSTI, the first 5′-CCNGG-3′ REase characterized from M. morganii, is a neoschizomer of ScrFI, which cleaves DNA leaving 1-nt long, ss, 5′-cohesive ends. It is a high-frequency cutter and can be isolated from easily cultured bacteria, thus it can potentially serve as a tool for DNA manipulations.
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