EF-1 Alpha (EF1a) Promoter Vectors

  • Constitutive mammalian promoter
  • Good alternative for expression in cells with low CMV promoter activity
Human elongation factor-1 alpha (EF-1 alpha) is a constitutive promoter of human origin that can be used to drive ectopic gene expression in various in vitro and in vivo contexts.

EF-1 alpha (or EF1a) is often useful in conditions where other promoters (such as CMV) have diminished activity or have been silenced (as in embryonic stem cells).

EF-1 alpha promoter vectors are available in multiple formats for either plasmid or lentiviral delivery:

- Fluorescent protein fusion vectors
- IRES vectors for coexpression of 2 genes
- Vectors with either Myc- or HA-tags for protein purification

Ordering information

Westburg offers this product in The Netherlands, Belgium, Luxembourg,
If you are not located in these countries please visit the Clontech website to find your local distributor.
Cat no. Description
CL 631969 pEF1a-mCherry-N1 Vector
CL 631970 pEF1a-IRES Vector
CL 631971 pEF1a-IRES-AcGFP1 Vector
CL 631972 pEF1a-mCherry-C1 Vector
CL 631973 pEF1a-AcGFP1-N1 Vector
CL 631974 pEF1a-AcGFP1-C1 Vector
CL 631975 pEF1a-tdTomato Vector
CL 631976 pEF1a-IRES-ZsGreen1 Vector
CL 631977 pEF1a-DsRed-Monomer-C1 Vector
CL 631978 pEF1a-DsRed-Monomer-N1 Vector
CL 631979 pEF1a-DsRed-Express2 Vector
CL 631980 pEF1a-IRES-DsRed-Express2 Vector
CL 631981 pEF1a-E2-Crimson Vector
CL 631991 pEF1a-Myc Vector
CL 631992 pEF1a-HA Vector