CRE/CREB Dual Reporter Vector

The cAMP/CREB signaling pathway (cyclic adenosine monophosphate/cAMP response element-binding protein) mediates diverse cellular responses to hormones and neurotransmitters through cAMP elevation (AMP cyclic), PKA activation (Protein Kinase A), CREB phosphorylation, and binding to cAMP Response Elements (CREs) to drive target gene expression, with dysregulation implicated in metabolic disorders, neurodegeneration, and cancer. Forskolin or cAMP analogs activate this pathway by stimulating adenylyl cyclase and downstream CREB-dependent transcription. The CRE/CREB Dual Reporter Vector (CRERV) is a DNA-based dual-luciferase system engineered to monitor this cAMP/CREB-dependent transcriptional activity in mammalian cells. It comprises a CRE/CREB Reporter Mix, in which Firefly luciferase is driven by multimerized cAMP Response Elements and co-formulated with a constitutive Renilla luciferase plasmid for internal normalization, and a Negative Control Reporter Mix lacking CRE binding sites to define non-inducible background and pathway specificity. Firefly luciferase provides a strong ATP-dependent signal proportional to CREB-driven transcription, while Renilla luciferase offers an ATP-independent internal control, enabling accurate quantification of cAMP pathway activity suitable for pathway studies, genetic perturbation experiments, and screening of small-molecule or biologic modulators.