[Term] id: PR:000050316 name: IgG4 B cell receptor complex (human) def: "An IgG4 immunoglobulin complex (human) that is present in the plasma membrane of B cells and is composed of two identical immunoglobulin heavy chains of the membrane-bound isoform of the IgG4 isotype, two identical immunoglobulin light chains (kappa or lambda), and a signaling subunit, a heterodimer of the Ig-alpha and Ig-beta proteins." [GOC:add, ISBN:0781765196, PMID:17496345, PRO:ADD] comment: Category=organism-complex. Requested by=HIPC. Requested by=CL. synonym: "surface IgG (human)" BROAD [PRO:ADD, GOC:add] synonym: "surface IgG4 (human)" EXACT [PRO:ADD, GOC:add] synonym: "hIgG4/B-cell-receptor" EXACT PRO-short-label [PRO:ADD, GOC:add] synonym: "membrane-bound IgG (human)" BROAD [PRO:ADD, GOC:add] synonym: "membrane-bound IgG4 (human)" EXACT [PRO:ADD, GOC:add] is_a: PR:000050308 ! IgG4 immunoglobulin complex (human) relationship: part_of CL:0000236 ! B cell relationship: part_of GO:0005886 ! plasma membrane relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens relationship: has_component PR:000050183 {cardinality="2"} ! immunoglobulin light chain protein (human) relationship: has_component PR:000050304 {cardinality="2"} ! IgG4 heavy chain protein, membrane-bound isoform (human) relationship: has_component PR:P11912 {cardinality="1"} ! B-cell antigen receptor complex-associated protein alpha chain (human) relationship: has_component PR:P40259 {cardinality="1"} ! B-cell antigen receptor complex-associated protein beta chain (human)