title: DNA restriction and modification systems in Salmonella. III. SP, a Salmonella potsdam system allelic to the SB system in Salmonella typhimurium.
abstract: By screening 42 Salmonella strains with P3, a temperate bacteriophage with an unusually wide host range, five new DNA restriction and modification systems (R-M systems) were identified in five different serotypes in Kauffmann-White group C. One of these systems, SP, in a Pl-sensitive strain of S. potsdam, was analyzed genetically by Pl transduction methods in which SP was transferred into S. typhimurium and C. coli/S. typhimurium hybrids. It was found that the genes of the SP system were allelic and functionally homologous to the genes of the SB system of S. typhimurium.
mesh_terms: D000483:Alleles; D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D004262:DNA Restriction Enzymes / Q000096:biosynthesis; D004279:DNA, Viral / Q000378:metabolism*; D005796:Genes; D008040:Genetic Linkage; D010641:Phenotype; D012475:Salmonella / Q000201:enzymology / Q000378:metabolism*; D012483:Salmonella Phages; D012486:Salmonella typhimurium / Q000378:metabolism; D014161:Transduction, Genetic
chemical_list: D004279:DNA, Viral; D004262:DNA Restriction Enzymes