Ready-to-use ELISA kits are available for the detection of s-SHIP, an alias of the protein, inositol polyphosphate-5-phosphatase D. The official gene symbol is INPP5D. The protein, with a mass of 133.3 kDa and length of 1189 residues, is reported to be cytoplasmic and membrane-associated. It is a member of the Inositol 1,4,5-trisphosphate 5-phosphatase family and may be known by other names, including: signaling inositol polyphosphate phosphatase SHIP II, signaling inositol polyphosphate 5 phosphatase SIP-145, inositol polyphosphate-5-phosphatase 145kDa, inositol polyphosphate-5-phosphatase 145kD, SH2 domain-containing inositol 5'-phosphatase 1, and SHIP-1.