{Reference Type}: Comparative Study {Title}: A consensus amino-acid sequence repeat in Torpedo and mammalian Ca2+-dependent membrane-binding proteins. {Author}: Geisow MJ;Fritsche U;Hexham JM;Dash B;Johnson T; {Journal}: Nature {Volume}: 320 {Issue}: 6063 {Year}: Apr 1986 17 {Factor}: 69.504 {DOI}: 10.1038/320636a0 {Abstract}: A group of calcium-binding proteins which bind to biomembranes has recently been identified in widely different cells and tissues (refs 1-7, reviewed in ref. 8). Three of these proteins (p70, p36 and p32.5) cross-react with antiserum to calelectrin, a Ca2+-binding protein (relative molecular mass 34,000 (34K] from the ray Torpedo marmorata, giving rise to their designation as calelectrin-related proteins. We now report that calelectrin, p36 and p32.5 contain a 17-amino-acid consensus sequence which is conserved and present in multiple copies. We suggest that this sequence may be common to other members of this new group of Ca2+-binding proteins and may underlie their unusual mode of combination with biomembranes.