has assay format has measured entity has role protein cell based format cell-based format reporter gene assay Reporter gene assay measures the gene expression from a reporter gene. The reporter gene is inserted under the control of a foreign promoter or an artificial regulatory element of interest. Reporters include luciferase, beta galactosidase, beta lactamase, chloramphenicol acetyl transferase, or a fluorescent protein. reporter assay reporter assays reports some ('gene expression' and ('has part' some 'reporter gene')) needs clean up to say has part gene with role of reporter. reporter gene assays reporter protein targeted transcriptional assay