These APRF ELISA kits are immunodetection tools for measuring the levels of APRF in biological samples. APRF is an alias of the human STAT3 gene, which encodes the protein, signal transducer and activator of transcription 3. Notably, APRF is known to play a role in the differentiation of certain cell types, among other functions. The STAT3 protein is 770 amino acid residues in length and 88.1 kilodaltons in mass. However, as many as 3 protein isoforms have been identified. It is localized to the nucleus and cytoplasm of the cell. This protein is known to be acetylated and phosphorylated. Other names for this target antigen include ADMIO and ADMIO1. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.