Immunoglobulin Superfamily, Member 9B (IGSF9B)

IGSF9B belongs to the immunoglobulin superfamily. Turtle family. Contains 2 fibronectin type-III domains. Contains 5 Ig-like (immunoglobulin-like) domains. The immunoglobulin superfamily (IgSF) is a large group of cell surface and soluble proteins that are involved in the recognition, binding, or adhesion processes of cells. Molecules are categorized as members of this superfamily based on shared structural features with immunoglobulins (also known as antibodies); they all possess a domain known as an immunoglobulin domain or fold. Members of the IgSF include cell surface antigen receptors, co-receptors and co-stimulatory molecules of the immune system, molecules involved in antigen presentation to lymphocytes, cell adhesion molecules, certain cytokine receptors and intracellular muscle proteins.