Anti-Bhlhb4 antibodies enable researchers to detect and measure the Bhlhb4 antigen in biological samples. This target is a reported synonym of the BHLHE23 gene, which encodes basic helix-loop-helix family member e23. This protein is known to function in neuronal development and the regulation of transcription, among other biological roles. The human version of Bhlhb4 has a canonical amino acid length of 225 residues and a protein mass of 23.7 kilodaltons. It is reported to be localized in the nucleus of cells.