Restriction digests of the clone give the following sizes (kb): PstI--2.7, 1.65; PvuI--3.9, 0.40; EcoRI--4.4; HindIII--4.4. One of a series of pBluescript-based integrating vectors (ATCC 77138-77141) differing in the yeast selectable marker gene. YI-type integrating shuttle vector permitting visual detection of recombinants and production of ssDNA in E. coli. Contains promoters for in vitro RNA synthesis, priming sites useful for sequencing, and encodes the lacZ alpha (lacZ') peptide. pRSS56, constructed by ligating a PvuI fragment (bp 498-2412) of pBluescript KS+ to a PvuI fragment (bp 2850-730) of pBS(+), contains the KS MCS from pBluescript KS+ and the unique NdeI and AatII sites between bla and f1 origin of pBS(+). A fragment (1.112 kb) containing the URA3 gene was inserted into the NdeI site of pRSS56. All ends were blunted. The order of the major features in this plasmid is: URA3 - f1 ori (NaeI) - T7 promoter - lacZ'/MCS - T3 promoter - pMB1 ori - bla. The following restriction sites in the multiple cloning site (MCS) are no longer unique: ApaI EcoRV PstI. |
