The STRA13 ELISA kits listed below are analytical tools for measuring concentrations of STRA13 in various samples. STRA13 is an alternative name for the human BHLHE40 gene, which encodes the protein, basic helix-loop-helix family member e40. It has been mentioned that STRA13 plays a role in the regulation of transcription, among other functions. Structurally, the BHLHE40 protein is described to be 412 amino acid residues in length and 45.5 kilodaltons in mass. It is localized to the nucleus and cytoplasm of the cell. In terms of tissue specificity, it is reported to be expressed in cartilage, spleen, intestine, lung, and to a lesser extent in heart, brain, liver, muscle and stomach. This protein is known to be ubiquitinated and sumoylated. Other names for this target antigen include BHLHB2, BHLHB2, and Clast5. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.