Complement receptor of the immunoglobulin family Tags: Protein.Complement receptor of the immunoglobulin family is a protein expressed in Kupffer cells.It is a critical receptor for the phagocytosis of opsonised particles in the blood. It recognizes iC3b (inactivated C3b) deposited on microbial surfaces. arm q band 12 chromosome X EntrezGene 11326 HGNCid 17032 locus supplementary data -q13.3 OMIM id 300353 RefSeq NM_007268 symbol VSIG4 UniProt Q9Y279 Learn more... Loading...