pBG78 Recombinant Sindbis Virus Replicon Plasmid – GFP Expressing

Recombinant plasmid pBG78 produces Sindbis virus (SINV) replicons in cells that can be easily visualized via GFP expression.


  • Can be transfected into mammalian cells to produce replicating but non-infectious Sindbis virus genomes
  • Expresses GFP for easy visualization of viral genome replication in live cells
  • Expresses Blasticidin-S-deaminase (BSD) and Green Fluorescent Protein (GFP)
  • 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 35 base polyA sequence. The structural proteins from the 5’ subgenomic promoter were replaced with the Blasticidin-S-deaminase (BSD) gene for replicon selection. The enhanced green fluorescent protein (eGFP) gene was ligated into the unique XbaI restriction site after the 3’ subgenomic promoter to allow GFP to be produced during viral replication. Transfection of construct into mammalian cells produces a self-replicating Sindbis virus genome that expresses the BSD protein and GFP, that can be packaged into 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) for GFP expression.

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

Catalog Number Product DataSheet Size AVAILABILITY Price Qty
pBG78 Recombinant Sindbis Virus Replicon Plasmid – GFP Expressing
250ng (50ng/uL) In stock
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
Fusion Tag(s): eGFP
Grow in E. coli at 37 C: DH5-alpha or XL10-Gold E-coli at 37C
Selectable markers: Blastacidin-S-deaminase
Cloning Site 5': MluI
Cloning Site 3': XhoI
Insert Size: 10,091 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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