Ready-to-use ELISA kits are available for the detection of regenerating islet-derived 1 beta, an alias of the protein, regenerating family member 1 beta. The official gene symbol is REG1B. The protein, with a mass of 18.7 kDa and length of 166 residues, is reported to be secreted. It may be known by other names, including: regenerating protein I beta, regenerating islet-derived protein 1-beta, pancreatic stone protein 2, REG-1-beta, PSP-2, and lithostathine-1-beta, and PSPS2.