Autosomal dominant familial calcium pyrophosphate dihydrate deposition disease (CPPDD) is caused by mutation in the transmembrane protein ank. - Williams, C; Zhan, Y; Timms, A; Bonavita, G; Caeiro, F; Broxholme, J; Cuthbertson, J; Jones, Y; Marchegiani, R; Reginato, A; Russell, G; Wordsworth, P; et al. (2002)