Invitrogen™ pSecTag2 A, B, & C Mammalian Expression Vectors

Brand origin : United States
Expiry time : On demand
Delivery time : 1 Week/s
Delivery cost : On demand
Unit size : 20 µg
Order number : V90020
($) On demand

Invitrogen™ pSecTag2 A, B, & C Mammalian Expression Vectors


pSecTag2 and pSecTag2/Hygro are mammalian expression vectors designed for the secretion, purification, and detection of fusion proteins. Each vector has a large multiple cloning site in three reading frames to simplify cloning in frame with the N-terminal secretion signal. 

The pSecTag2 vectors carry the Zeocin™ resistance gene for cost-effective selection in mammalian cells. Zeocin™ selection can also be used in E. coli.

The pSecTag2/Hygro vectors have the Hygromycin B resistance gene for selection of stable mammalian cell lines.



  • Secretion signal from the V-J2-C region of the mouse Ig kappa-chain for efficient secretion of recombinant proteins (Figure 2)
  • Cytomegalovirus (CMV) promoter for high-level constitutive expression
  • C-terminal polyhistidine (6xHis) tag for rapid purification with nickel-chelating resin and detection with an Anti-His(C-term) Antibody
  • C-terminal c-myc epitope for detection with an Anti-myc Antibody
  • Bovine Growth Hormone (BGH) polyadenylation signal and transcription termination sequence to enhance mRNA stability
  • SV40 origin for episomal replication and simple vector rescue in cell lines expressing the large T antigen (e.g., COS-1, COS-7)



  • pSecTag2 A, B, and C: 20 μg 
  • pSecTag2/PSA: 20 μg 

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