HAPLN3 is a 360 amino acid extracellular protein belonging to the HAPLN family and contains one Ig-like V-type (immunoglobulin-like) domain and two Link domains. This protein may function in hyaluronic acid binding and cell adhesion. It is either a secreted or an extracellular matrix protein involved in stabilizing the aggregates of proteoglycan monomers with hyaluronic acid in the extracellular cartilage matrix. HAPLN3 is widely expressed in most tissues with highest levels in spleen and placenta.
extracellular link domain containing, 1; Hyaluronan and proteoglycan link protein 3