These UBF ELISA kits are immunodetection tools for measuring the levels of UBF in biological samples. UBF is an alias of the human UBTF gene, which encodes the protein, upstream binding transcription factor. The protein is known to recognize the ribosomal RNA gene promoter and activates transcription mediated by RNA polymerase I through cooperative interactions with the transcription factor SL1/TIF-IB complex. The UBTF protein is 764 amino acid residues in length and 89.4 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is localized to the nucleus of the cell. This protein is known to be phosphorylated. Other names for this target antigen include CONDBA and NOR-90. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.