CXCL12-beta, Human

GoldBio growth factors are manufactured for RESEARCH USE ONLY and cannot be sold for human consumption!Recombinant Human Chemokine (C-X-C motif) Ligand 12, Beta (CXCL12β) Stromal Cell-Derived Factor 1 (SDF1) Small Inducible Cytokine Subfamily B Member 12 (SCYB12) Pre-B Cell Growth-Stimulating Factor (PBSF) Thymic Lymphoma Cell-Stimulating Factor (TLSF) CXCL12 is a CXC chemokine lacking the ELR motif. It was first found in bone marrow stromal cells and is expressed in a wide variety of cells with the exception blood cells. CXCL12 acts as a ligand for CXCR4. It is chemotactic for human hematopoietic progenitor cells expressing CD34, mononuclear cells, and cerebellar granule cells. CXCL12 plays a role in lymphopoiesis, myelopoiesis, vascularization of the gastrointestinal tract, and cerebellar development. CXCL12-beta is one of six alternatively spliced isoforms of the CXCL12 gene and is used as the canonical sequence.Sterile Filtered White lyophilized powder. Purified and tested for use in cell culture.Source:Escherichia coliMW: ~8.5 kDa (72 amino acids) Purity: >97% by SDS-PAGE and HPLC analysesBiological Activity: Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using PHA and rHuIL-2 activated human peripheral blood T-lymphocytes is in a concentration range of 20-80 ng/ml.