Complementation and hybridization evidence for additional families of type I DNA restriction and modification genes in Salmonella serotypes.
AUTOR(ES)
Ryu, J
RESUMO
Of eight Salmonella, serB-linked hsd genes for the restriction and modification of DNA transferred to Escherichia coli/Salmonella hybrids, only two--those with SM and ST (S. muenchen and S. thompson, respectively) specificities--may have weakly complemented rSB- and none complemented rK-. An A-specific DNA probe failed to hybridize to HindIII-restricted fragments of each of the hybrids, but an SB (S. typhimurium)-specific probe hybridized to DNA from the hybrid with ST specificity. These results indicate that additional families of the type I hsd genes may exist.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=211683Documentos Relacionados
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