S17-λpir E.coli大肠杆菌菌株S17-lambda pir BioVector NTCC中国质粒载体菌种细胞基因保藏中心

S17-λpir E.coli大肠杆菌菌株S17-lambda pir BioVector NTCC中国质粒载体菌种细胞基因保藏中心 S17-lambda pir S17-lambda pir strain. LB stab, Storage:4℃ Organism: Escherichia coli (Migula) Castellani and Chalmers Designations: S17-λpir Genotype: TpR SmR recA, thi, pro, hsdR-M+RP4: 2-Tc:Mu: Km Tn7 λpir. Growth Conditions: LB medium Temperature: 37.0°C Applications: transformation host Comments: E. coli S17-λpir strain contains the pir gene (λpir). This strain have chromosomally integrated conjugal transfer functions (RP4 transfer functions), so when it is used as specific host strain into which the transposon vector DNA is transformed, the transfer occurs by biparental mating (a helper strain is not necessary). [Supplier来源] http://www.biovector.net