Ready-to-use ELISA kits are available for the detection of Laminin B1, an alias of the protein, laminin subunit beta 1. The official gene symbol is LAMB1. The kits can detect several species variants of the protein, including: human, mouse, rat, and chicken. The protein, with a mass of 198 kDa and length of 1786 residues, is reported to be secreted. It may be known by other names, including: LIS5, laminin beta 1, and laminin B1 chain.