| first evidence for a restriction-modification system in leptospira sp. | the le1 leptophage exhibited a host range restricted to the saprophytic leptospira biflexa [saint girons et al., res. microbiol. 141 (1990) 1131-1133] and mainly to the patoc 1 strain (hereafter called pfra) kept in the paris, france collection. results of titration of le1 lysates indicated the presence of a host-controlled modification and restriction system within pusa (patoc 1 strain maintained in the morgantown, wv, usa collection) that was absent in pfra. because genomic dna of pital (patoc ... | 2001 | 11470352 |