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Central Collection of Strains (IBB)

Base: Yeast strains
Institution Code: IBBPAS
Collection Code: ColIBB
Number in base: 4027
Species: Saccharomyces cerevisiae
Strain: SC100
Genotype: MATa trp1-289 his7-2 leu2-Δ::kanMX4 ura3-Δ ade2-1 lys2-ΔGG2899-2900 CAN1 msh6::hisG dpb2::pKF117dpb2-101(CaURA3, HIS3)
Plasmid:
Plasmid map:
Selectable Markers: trp, leu lys, his, ade, kanMX4(G418), CAN1
Antibiotic concentration:
Construction: pKF117dpb2-101 intergrative plasmid; the dpb2-101 allele was introduced into the chromosome by transplacement; the pKF117 integrative vector containing dpb2-101 allele with its natural promotor and terminator was linearized at unique BamHI and XbaI sites positioned between promotor and an additional fragment of terminator. The linearized plasmid was transformed into strain ΔI(-2)I-7B-YUNI300 msh6::hisG (no.4010) Transformants were selected for uracil prototrophy on plates, which were incubated at 23ºC for up to 10 days. To confirm the integration into DPB2 chromosomal locus the genomic DNA of the constructed dpb2-101 strain was isolated and used as a template in a PCR reaction with primers: 5'-TGTAAAACGACGGCCAGT–3' ( 21-M13 universal primer) and 5'-GAATACTGGCTTACCGAG-3', which recognized the vector sequence and the chromosomal sequence downstream of DPB2, respectively, generating a 1361 bp band in case of integration into the aimed locus. The presence of Leu284Pro mutation was confirmed with PCR and sequencing reactions
Strain properties/Comments: strain grows well at 23oC and slowly at 30oC and 37oC; strain exhibits mutator phenotype; mutation frequencies can be measured at different genetic loci; trp1-289,ade2-1 allow to measure base substitution; his7-2 lys2-ΔGG2899-2900 allow to measure fr
Author: Malgorzata Jaszczur
Availability: restricted
Patent:
Depositor: Malgorzata Jaszczur
Deposition date: 2009-03-04 18:03+01:00
References: Jaszczur et al.(2008) Genetics 178: 633-647.