NCIt definition : Encoded by Immunoglobulin Family Genes, structurally-related Immunoglobulin Family
Proteins contain one, or more, 100-aa Immunoglobulin domain that includes a conserved
intradomain disulfide bond and may be involved in protein-protein or protein-ligand
interactions. Immunoglobulin Family members include hundreds of functionally diverse
proteins, such as Immunoglobulins, the muscle kinase titin, and receptor tyrosine
kinases. (NCI);