These HRB ELISA kits are immunodetection tools for measuring the levels of HRB in biological samples. HRB is an alias of the human AGFG1 gene, which encodes the protein, ArfGAP with FG repeats 1. Notably, HRB is known to play a role in spermatid nucleus differentiation, among other functions. The AGFG1 protein is 562 amino acid residues in length and 58.3 kilodaltons in mass. However, as many as 4 protein isoforms have been identified. It is localized to the nucleus and cytoplasmic vesicles of the cell. In terms of tissue specificity, it is ubiquitously expressed across many tissue types. This protein is known to be O-glycosylated. Other names for this target antigen include RAB. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.