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Comparative Study
. 1991 Apr:100:213-8.
doi: 10.1016/0378-1119(91)90369-m.

M.H2I, a multispecific 5C-DNA methyltransferase encoded by Bacillus amyloliquefaciens phage H2

C Lange  1 , M Noyer-Weidner, T A Trautner, M Weiner, S A Zahler
Affiliations
Comparative Study

M.H2I, a multispecific 5C-DNA methyltransferase encoded by Bacillus amyloliquefaciens phage H2

C Lange et al. Gene. 1991 Apr.

Abstract

Bacillus amyloliquefaciens phage H2 codes for a multispecific cytosine-5-DNA- methyltransferase (MTase), M.H2I, which methylates GGCC, GCNGC and [sequence: see text] target sequences. The gene coding for M.H2I was cloned in Escherichia coli and its nucleotide (nt) sequence was determined. It consists of 1509 bp, corresponding to a protein of 503 amino acids (aa) with a calculated Mr of 57,166. A comparison of the aa sequence of M.H2I with those of the multispecific MTases encoded by Bacillus subtilis phages SPR, phi 3T and rho 11S, revealed that M.H2I is closely related to these enzymes. A very high degree of homology was observed between M.H2I and M.rho 11SI, with 96.2% aa identity and 97.8% nt identity of the corresponding genes.

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