Tan Y, Du J, Cai S, Li XK, Ma W, Guo Z, Chen H, Huang Z, Xiao J, Cai L* et al: Cloning and characterizing mutated human stromal cell-derived factor-1 (SDF-1): C-terminal alpha-helix of SDF-1 alpha plays a critical role in CXCR4 activation and signaling, but not in CXCR4 binding affinity. Experimental Hematology. 2006, 34(11): 1553-1562. (IF=2.475)