MGI:109563 b2b220Clo genetic mapping CD184 CD184|b2b220Clo|fusin|PB-CKR|Cmkar4|Sdf1r Gene chemokine (C-X-C motif) receptor 4 PB-CKR - protein coding gene Cxcr4 http://identifiers.org/mgd/MGI:109563 Sdf1r O fusin Cmkar4