Ready-to-use ELISA kits are available for the detection of nephroblastoma overexpressed gene, an alias of the protein, cellular communication network factor 3. The official gene symbol is CCN3. The protein, with a mass of 39.2 kDa and length of 357 residues, is reported to be cytoplasmic and secreted. It is a member of the CCN family and may be known by other names, including: protein NOV homolog, nephroblastoma-overexpressed gene protein homolog, nephro blastoma-overexpressed gene protein homolog, insulin-like growth factor-binding protein 9, IGF-binding protein 9, and CCN family member 3, and IGFBP-9.