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pGEM-7Zf(–)体外转录载体环状ssDNA生产质粒 BioVector NTCC质粒载体菌种细胞基因保藏中心

  • 价  格:¥19865
  • 货  号:pGEM-7Zf(–)
  • 产  地:北京
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pGEM-7Zf(–)体外转录载体环状ssDNA生产质粒

The pGEM-7Zf(+) and pGEM-7Zf(–) Vectors are derivatives of the pGEM-3Zf(+) Vector and contain the origin of replication of the filamentous phage f1. These plasmids serve as standard cloning vectors, as templates for in vitro transcription and can be used for the production of circular ssDNA. These plasmids contain SP6 and T7 RNA polymerase promoters flanking a region of multiple cloning sites within the α-peptide coding region of β-galactosidase. Insertional inactivation of the α-peptide allows recombinant clones to be identified directly by color screening on indicator plates when using appropriate E. coli strains (e.g., JM109). The multiple cloning region is unique and includes restriction sites for ApaI, AatII, SphI, XbaI, XhoI, EcoRI, KpnI, SmaI, ClaI, HindIII, BamHI, SacI, BstXI and NsiI. This arrangement is designed specifically for generating unidirectional deletions with the Erase-a-Base™ System. pGEM-7Zf(+) and pGEM-7Zf(–) Vectors are identical except for the orientation of the f1 origin.


Features - Benefits
Blue/White Screening: Allows the easy identification of recombinant clones.
Versatile: These standard cloning vectors are equipped for single-stranded DNA production and in vitro transcription from SP6 and T7 RNA polymerase promoters flanking the multiple cloning region.
Convenient: Multiple cloning site provides a selection of restriction sites for cloning.
Unidirectional Deletions: Restriction sites are positioned conveniently for use with the Erase-a-Base™ System.

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