The EGF module-containing Mucin-like hormone Receptors (EMRs) are closely related subgroup of G protein-coupled receptors (GPCRs). These receptors have a unique hybrid structure in which an extracellular epidermal growth factor (EGF)-like domain is fused to a GPCR domain through a mucin-like stalk.[1][2][3][4] There are four variants of EMR labeled 1–4, each encoded by a separate gene. These receptors are predominantly expressed in cells of the immune system and bind ligands such as CD55.[5]
^Baud V, Chissoe SL, Viegas-Péquignot E, Diriong S, N'Guyen VC, Roe BA, Lipinski M (1995). "EMR1, an unusual member in the family of hormone receptors with seven transmembrane segments". Genomics. 26 (2): 334–44. doi:10.1016/0888-7543(95)80218-B. PMID7601460.
^Lin HH, Stacey M, Hamann J, Gordon S, McKnight AJ (2000). "Human EMR2, a novel EGF-TM7 molecule on chromosome 19p13.1, is closely related to CD97". Genomics. 67 (2): 188–200. doi:10.1006/geno.2000.6238. PMID10903844.
^Caminschi I, Vandenabeele S, Sofi M, McKnight AJ, Ward N, Brodnicki TC, Toy T, Lahoud M, Maraskovsky E, Shortman K, Wright MD (2006). "Gene structure and transcript analysis of the human and mouse EGF-TM7 molecule, FIRE". DNA Seq. 17 (1): 8–14. doi:10.1080/10425170500355737. PMID16753812. S2CID11216477.