assay:688634 | assay:description | PubChem BioAssay. Counterscreen Assay for Enhancers of SMN2 Splice Variant Expression: Interaction with Luciferase Reporter. In this assay, we utilize purified firefly luciferase in lieu of a cellular reporter to identify compounds interacting directly with luciferase in the primary screen. (Class of assay: confirmatory) [Related pubchem assays: 1474 , 1458 ] | lld:chembl |