These FIP ELISA kits are immunodetection tools for measuring the levels of FIP in biological samples. FIP is an alias of the human USF2 gene, which encodes the protein, upstream transcription factor 2, c-fos interacting. Notably, FIP is known to play a role in the metabolism of lipids and the regulation of transcription, among other functions. The USF2 protein is 346 amino acid residues in length and 37 kilodaltons in mass. However, as many as 4 protein isoforms have been identified. It is localized to the nucleus of the cell. In terms of tissue specificity, it is ubiquitously expressed across many tissue types. Other names for this target antigen include . Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.