Ready-to-use ELISA kits are available for the detection of ladinin, an alias of the protein, ladinin 1. The official gene symbol is LAD1. The protein, with a mass of 57.1 kDa and length of 517 residues, is reported to be secreted. It may be known by other names, including: LadA, linear IgA disease antigen homolog, and linear IgA bullous dermatosis antigen.