pBG68 Recombinant Sindbis Virus Replicon Expression Plasmid

Recombinant plasmid pBG68 produces Sindbis virus (SINV) replicons in cells that allows for fast and easy expression of your gene of interest.


  • Can be transfected into mammalian cells to produce replicating but non-infectious Sindbis virus genomes
  • Expresses Blasticidin-S-deaminase (BSD) protein for selection
  • Can be used in poorly transfectable cells when co-transfected with the packaging plasmid pBG256

The Sindbis virus genome was inserted into the pcDNA3.1 Zeo+ expression vector such that the transcription start site of the CMV promoter overlaps with the first viral nucleotide of the viral genome. A Hepatitis D virus (HDV) ribozyme was added to the 3' end of the viral genomic 35bp polyA sequence. The structural proteins from the 5' subgenomic promoter were replaced with the Blasticidin-S-deaminase (BSD) gene for replicon selection. A unique XbaI restriction site 3' subgenomic promoter to allow genes of interest to be ligated into the replicon. Transfection of this construct into mammalian cells produces a self-replicating Sindbis virus genome that expresses the BSD protein and any genes of interest cloned into the unique XbaI site, that can be packaged into single-round infectious virus-like particles by co-transfection with packaging plasmid pBG256 that can be used to insert the replicon into poorly or non-transfectable cells (in vitro or in vivo).

From the laboratory of Brian J. Geiss, PhD, Colorado State University.

Catalog Number Product DataSheet Size AVAILABILITY Price Qty
pBG68 Recombinant Sindbis Virus Replicon Expression Plasmid
250ng (50ng/uL) 1-2 weeks
Regular Price:$80.00
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Product Type: Plasmid
Gene/insert name: Sindbis virus replicon
Organism: Sindbis Virus Strain TE3'2J (AR339)
Antibiotic Resistance: Amp
Grow in E. coli at 37 C: DH5-alpha or XL10-Gold E-coli
Cloning Site 5': MluI
Cloning Site 3': XhoI
Insert Size: 9,280 bp
Vector Backbone and Size: pcDNA3.1 Zeo+
High or low copy: High
Storage: Room Temperature (Dried), -20C (liquid)
Shipped: Room Temperature

From the laboratory of Brian J. Geiss, PhD, Colorado State University.
  1. Geiss BJ, Shimonkevitz LH, Sackal CI, Olson KE. Recombination-ready Sindbis replicon expression vectors for transgene expression. Virol J. 2007 Oct 26;4:112.PubMed PMID: 17963504; PubMed Central PMCID: PMC2164957.

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