The presence in human tumours of a Mr 11,700 calcium-binding protein similar to rodent oncomodulin.

Oncomodulin is a parvalbumin-like calcium binding protein of Mr 11,700 from rodent tumours. An antiserum to rat oncomodulin cross-reacts with extracts of several human solid tumour tissues. When purified, this human immunoreactive protein binds calcium, and has a molecular weight and amino acid composition similar to the rodent protein. This protein was not found in normal adult human tissue.