sentences:  This gene is closely linked to the gene encoding EGF-like molecule containing mucin-like hormone receptor 3 EMR3 on chromosome 19.Like the related CD97 protein, the fourth EGF-like domain of EMR2 binds chondroitin sulfate B to mediate cell attachment.However, unlike CD97 EMR2 does not interact with the complement regulatory protein, decay accelerating factor CD55, and indicating that these very closely related proteins likely have nonredundant functions.