Calpain-10 is a protein that in humans is encoded by the CAPN10 gene.[5][6]
Calpains are ubiquitous, well-conserved family of calcium-dependent, cysteine proteases. The typical calpain proteins are heterodimers consisting of an invariant small subunit and variable large subunits. The large catalytic subunit has four domains: domain I, the N-terminal regulatory domain that is processed upon calpain activation; domain II, the protease domain; domain III, a linker domain of unknown function; and domain IV, the calmodulin-like calcium-binding domain.