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CXCL12 (stromal cell-derived factor-1, SDF-1), is a small protein that belongs to the chemokine family, whose members have a crucial role in directing cell migration. It is ubiquitously expressed in many tissues and cell types. CXCL12 acts through two receptors, CXCR4 and CXCR7. While the former is a classic G protein-coupled transmembrane chemokine receptor, the latter primarily function as a scavenger of CXCL12. CXCL12 is a chemoattractant for T-lymphocytes and monocytes, but not neutrophils. CXCL12 has an essential role in neural and vascular development, hematopoiesis, cancer and in immunity[1][2][3].
CXCL12 gene in human is located on chromosome 10 (10q11.21) and recognizes seven isoforms deriving from alternative gene splicing (α, β, γ, δ, ε, θ) with α and β being the most studied and three (CXCL12α to γ) in mice. CXCL12 is described classically as a homing chemokine as it exhibits chemoattraction of tumoral cells toward the target tissues. CXCL12, although being homeostatic in classification, also takes inflammatory activities. CXCL12 binds to glycosaminoglycans (GAGs) exposed on the surface of endothelial cells through a cluster of basic residues-the BBXB motif (B for basic amino acid and X any amino acid) generating its chemotactic gradients and promoting leukocyte/cancer cell migration. CXCL12/CXCR4 axis is involved in tumor progression, angiogenesis, metastasis, and survival. CXCR7 binds with high-affinity CXCL12 and with lower-affinity CXCL11. Although CXCR7 acts as a CXCL12 scavenger through ligand internalization and degradation, it transduces the signal mainly through β-arrestin with a pivotal role in endothelial and neural cells. CXCL12 is constitutively expressed in several organs including lung, liver, skeletal muscle, brain, kidney, heart, skin, and bone marrow. CXCL12 secretion is also associated with tissue damage such as heart infarct, limb ischemia, toxic liver damage, excessive bleeding, total body irradiation, and after tissue damage related to chemotherapy. CXCR4 is expressed by endothelial cells and pericytes of hypoxic, injured, or pathological tissues, including injured carotid arteries and atherosclerotic plaques[1][2].
SDF-1 beta (Stromal-derived factor-1β, SDF-1β) is a stromal derived CXC chemokine that signal through the CXCR4 receptor. SDF-1β has chemotactic activity on B and T cells. SDF-1 beta/CXCL12 Protein, Mouse is produced in E. coli, and consists of 72 amino acids (K22-M93).
SDF-1 beta (Stromal-derived factor-1β, SDF-1β) is a stromal derived CXC chemokine that signal through the CXCR4 receptor. SDF-1β has chemotactic activity on B and T cells. SDF-1 beta/CXCL12 Protein, Human (HEK293, Fc) is produced in HEK293 cells with a N-Terminal Fc-tag. It consists of 72 amino acids (K22-M93).
The SDF-1 alpha/CXCL12 protein is a chemoattractant for immune cells. Animal-Free SDF-1 Beta/CXCL12 Protein, Human (His) is the recombinant human-derived animal-FreeSDF-1 Beta/CXCL12 protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free SDF-1 Beta/CXCL12 Protein, Human (His) is 65 a.a., with molecular weight of ~8.55 kDa.
SDF-1 beta (Stromal-derived factor-1β, SDF-1β) is a stromal derived CXC chemokine that signal through the CXCR4 receptor. SDF-1β has chemotactic activity on B and T cells. SDF-1 beta/CXCL12 Protein, Human (72a.a) is produced in E. coli, and consists of 72 amino acids (K22-M93).
SDF-1 alpha (Stromal Cell-Derived Factor-1α, SDF-1α) is a member of the chemokine α subfamily that lack the ELR domain. SDF-1α works as a chemoattractant for T- and B-lymphocytes and monocytes. SDF-1α is a ligand for CXCR4. The SDF-1α/CXCR4 signaling mediates many physiological processes including cell trafficking, angiogenesis, embryogenesis, tumor invasion and metastatic. It also controls the chemotaxis of hematopoietic stem cells homing to the bone marrow. SDF-1 alpha/CXCL12 Protein, Mouse (68a.a, CHO) is produced in CHO cells, and consists of 68 amino acids (K22-K89).
The SDF-1 α/CXCL12 protein acts as a chemoattractant with specific activity on T lymphocytes and monocytes (excluding neutrophils). It activates the CXC chemokine receptor CXCR4, inducing a rapid and transient rise in intracellular calcium ions and promoting chemotaxis. Animal-Free SDF-1 alpha/CXCL12 Protein, Mouse (His) is the recombinant mouse-derived animal-FreeSDF-1 alpha/CXCL12 protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free SDF-1 alpha/CXCL12 Protein, Mouse (His) is 69 a.a., with molecular weight of ~8.97 kDa.
The SDF-1 alpha/CXCL12 protein is a chemoattractant for immune cells. SDF-1 alpha/CXCL12 Protein, Human is the recombinant human-derived SDF-1 alpha/CXCL12 protein, expressed by E. coli , with tag free. The total length of SDF-1 alpha/CXCL12 Protein, Human is 68 a.a., with molecular weight of ~10.0 kDa.
SDF-1 alpha (Stromal Cell-Derived Factor-1α, SDF-1α) is a member of the chemokine α subfamily that lack the ELR domain. SDF-1α works as a chemoattractant for T- and B-lymphocytes and monocytes. SDF-1α is a ligand for CXCR4. The SDF-1α/CXCR4 signaling mediates many physiological processes including cell trafficking, angiogenesis, embryogenesis, tumor invasion and metastatic. It also controls the chemotaxis of hematopoietic stem cells homing to the bone marrow. SDF-1 alpha/CXCL12 Protein, Mouse is produced in E. coli, and consists of 68 amino acids (K22-K89).
SDF-1 beta (Stromal-derived factor-1β, SDF-1β) is a stromal derived CXC chemokine that signal through the CXCR4 receptor. SDF-1β has chemotactic activity on B and T cells. SDF-1 beta/CXCL12 Protein, Rat is produced in E. coli, and consists of 68 amino acids (K22-K89).
SDF-1 alpha (Stromal Cell-Derived Factor-1α, SDF-1α) is a member of the chemokine α subfamily that lack the ELR domain. SDF-1α works as a chemoattractant for T- and B-lymphocytes and monocytes. SDF-1α is a ligand for CXCR4. The SDF-1α/CXCR4 signaling mediates many physiological processes including cell trafficking, angiogenesis, embryogenesis, tumor invasion and metastatic. It also controls the chemotaxis of hematopoietic stem cells homing to the bone marrow. SDF-1 alpha/CXCL12 Protein, Human (His) is produced in E. coli with a N-Terminal His-tag. It consists of 68 amino acids (K22-K89).
SDF-1 alpha (Stromal Cell-Derived Factor-1α, SDF-1α) is a member of the chemokine α subfamily that lack the ELR domain. SDF-1α works as a chemoattractant for T- and B-lymphocytes and monocytes. SDF-1α is a ligand for CXCR4. The SDF-1α/CXCR4 signaling mediates many physiological processes including cell trafficking, angiogenesis, embryogenesis, tumor invasion and metastatic. It also controls the chemotaxis of hematopoietic stem cells homing to the bone marrow. SDF-1 alpha/CXCL12 Protein, Rat is produced in E. coli, and consists of 68 amino acids (K22-K89).
SDF-1 (stromal cell-derived factor-1) is a homeostatic chemokine that binds CXCR4 and CXCR7 receptors and physiologically functions in hematopoiesis, leucocyte trafficking, cardiogenesis, and neurogenesis. SDF-1 is constitutively expressed in several organs including lung, liver, skeletal muscle, brain, kidney, heart, skin, and bone marrow. SDF-1 has an essential role in neural and vascular development, hematopoiesis, cancer and in immunity. SDF-1 Protein, Canine is produced in E. coli, and consists of 72 amino acids (K22-M93).
SDF-1 alpha (Stromal Cell-Derived Factor-1α, SDF-1α) is a member of the chemokine α subfamily that lack the ELR domain. SDF-1α works as a chemoattractant for T- and B-lymphocytes and monocytes. SDF-1α is a ligand for CXCR4. The SDF-1α/CXCR4 signaling mediates many physiological processes including cell trafficking, angiogenesis, embryogenesis, tumor invasion and metastatic. It also controls the chemotaxis of hematopoietic stem cells homing to the bone marrow. SDF-1 alpha/CXCL12 Protein, Human (68a.a) is produced in E. coli, and consists of 68 amino acids (K22-K89).
CXCL12 (stromal cell-derived factor-1, SDF-1) is a homeostatic chemokine that binds CXCR4 and CXCR7 receptors and physiologically functions in hematopoiesis, leucocyte trafficking, cardiogenesis, and neurogenesis. CXCL12 is constitutively expressed in several organs including lung, liver, skeletal muscle, brain, kidney, heart, skin, and bone marrow. CXCL12 has an essential role in neural and vascular development, hematopoiesis, cancer and in immunity. CXCL12 Protein, Mouse is produced in E. coli, and consists of 68 amino acids (K22-K89).
SDF-1 (stromal cell-derived factor-1) is a homeostatic chemokine that binds CXCR4 and CXCR7 receptors and physiologically functions in hematopoiesis, leucocyte trafficking, cardiogenesis, and neurogenesis. SDF-1 is constitutively expressed in several organs including lung, liver, skeletal muscle, brain, kidney, heart, skin, and bone marrow. SDF-1 has an essential role in neural and vascular development, hematopoiesis, cancer and in immunity. SDF-1 Protein, Rhesus Macaque (HEK293, Fc) is produced in HEK293 cells with a C-Terminal Fc-tag. It consists of 89 amino acids (M1-K89).
