genetic mapping SDF-1 MGI:103556 Gene chemokine (C-X-C motif) ligand 12 Scyb12 PBSF/SDF-1 Sdf1b Sdf1 protein coding gene Sdf1a TPAR1 TLSF-a O + TLSF-a|SDF-1|Sdf1|Scyb12|PBSF/SDF-1|TPAR1|TLSF-b|Sdf1a|Sdf1b|PBSF http://identifiers.org/mgd/MGI:103556 TLSF-b PBSF Cxcl12