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The CXC subfamily (or α-chemokines), a pleiotropic family of cytokines, is characterized by four highly conserved cysteine amino acid residues, with two cysteine residues (C) and a non-cysteine amino acid (X) between them. The CXC family is known for its ability to promote trafficking of various leukocytes and to regulate angiogenesis and vascular remodelling. Depending on the presence or absence of the ELR motif (the sequence Glu-Leu-Arg), which immediately precedes the first cysteine residue near the amino-terminal end, CXC chemokines are potent promoters or inhibitors of angiogenesis. The ELR-positive chemokines (i.e., CXCL1 to CXCL3 and CXCL5 to CXCL8) are angiogenic and act mainly through the CXCR2 receptor. The ELR motif, along with the CXC residues, is required for receptor activation. By contrast, the non-ELR chemokines (CXCL4, CXCL9, CXCL10, CXCL11 and CXCL17) are angiostatic and act mainly through the CXCR3B receptor. The exception to this is CXCL12, which is a non-ELR chemokine but is angiogenic and exerts its effects on the vasculature primarily by binding to CXCR4 and CXCR7.
The CXCR4 protein functions as a receptor for the CXC chemokine CXCL12/SDF-1, triggering an increase in intracellular calcium ions and activation of MAPK1/MAPK3. It is actively involved in AKT signaling, which is critical for regulating cell migration, especially in wound healing. CXCR4 Protein, Human (HEK293, Fc) is the recombinant human-derived CXCR4 protein, expressed by HEK293 , with N-hFc labeled tag. The total length of CXCR4 Protein, Human (HEK293, Fc) is 46 a.a., with molecular weight of 35-45 kDa.
C-X-C chemokine receptor type 4; CD184; CD184 antigen; Chemokine C X C motif; receptor 4; Chemokine CXC Motif Receptor 4; CXC-R4; CXCR-4; CXCR4; CXCR4_HUMAN; D2S201E; FB22; Fusin; HM89; HSY3RR; LAP 3; LAP3; LCR1; LESTR; NPY3R; NPYR; NPYRL; NPYY3; NPYY3R; SDF 1 receptor; SDF-1 receptor; WHIM; WHIMS
Human
E. coli
The CXCR4 protein functions as a receptor for the CXC chemokine CXCL12/SDF-1, triggering an increase in intracellular calcium ions and activation of MAPK1/MAPK3. It is actively involved in AKT signaling, which is critical for regulating cell migration, especially in wound healing. CXCR4 Protein, Human (N-His-SUMO, C-Myc) is the recombinant human-derived CXCR4 protein, expressed by E. coli , with N-10*His, C-Myc, N-SUMO labeled tag. The total length of CXCR4 Protein, Human (N-His-SUMO, C-Myc) is 50 a.a., with molecular weight of ~28 kDa.
CXCR2, the receptor for interleukin-8 (IL-8), orchestrates neutrophil activation through a G-protein-mediated phosphatidylinositol-calcium second messenger system upon IL-8 binding. Exhibiting high-affinity binding to IL-8, CXCR2 also interacts with other ligands like CXCL3, GRO/MGSA, and NAP-2. The involvement of GNAI2 underscores the intricate signaling mechanisms regulating neutrophil function through CXCR2. CXCR2 Protein, Human (His-SUMO) is the recombinant human-derived CXCR2 protein, expressed by E. coli, with N-SUMO, N-6*His labeled tag. The total length of CXCR2 Protein, Human (His-SUMO) is 40 a.a., with molecular weight of 20.6 kDa.
The CXCR4 protein functions as a receptor for the CXC chemokine CXCL12/SDF-1, triggering an increase in intracellular calcium ions and activation of MAPK1/MAPK3. It is actively involved in AKT signaling, which is critical for regulating cell migration, especially in wound healing. CXCR4 Protein, Human (Cell-Free, His) is the recombinant human-derived CXCR4 protein, expressed by E. coli Cell-free , with N-6*His labeled tag. The total length of CXCR4 Protein, Human (Cell-Free, His) is 356 a.a., the molecular weight are 44 KDa (monomer), 100 KDa (dimer), whiel dimers are generally formed.
CXC-R4; CXCR-4; FB22; Fusin; HM89; LCR1; Leukocyte-derived seven transmembrane domain receptor; LESTR; Lipopolysaccharide-associated protein 3; LAP-3; LPS-associated protein 3; NPYRL; Stromal cell-derived factor 1 receptor; SDF-1 receptor; CD antigen CD184
Human
HEK293
The CXCR4 protein functions as a receptor for the CXC chemokine CXCL12/SDF-1, triggering an increase in intracellular calcium ions and activation of MAPK1/MAPK3. It is actively involved in AKT signaling, which is critical for regulating cell migration, especially in wound healing. CXCR4-VLPs Protein, Human (HEK293, His) is the recombinant human-derived CXCR4-VLPs protein, expressed by HEK293 , with C-10*His labeled tag. The total length of CXCR4-VLPs Protein, Human (HEK293, His) is 352 a.a., with molecular weight of 41.5 kDa.
C-X-C chemokine receptor type 4; CD184; CD184 antigen; Chemokine C X C motif; receptor 4; Chemokine CXC Motif Receptor 4; CXC-R4; CXCR-4; CXCR4; CXCR4_HUMAN; D2S201E; FB22; Fusin; HM89; HSY3RR; LAP 3; LAP3; LCR1; LESTR; Leukocyte derived seven transmembrane domain receptor; Leukocyte-derived seven transmembrane domain receptor; Lipopolysaccharide associated protein 3; Neuropeptide Y receptor Y3; NPY3R; NPYR; NPYRL; NPYY3; NPYY3R; Probable G protein coupled receptor lcr1 homolog; SDF 1 receptor; SDF-1 receptor; SEVEN-TRANSMEMBRANE-SEGMENT RECEPTOR; Stromal cell derived factor 1 receptor; Stromal cell-derived factor 1 receptor; WHIM; WHIMS
Human
E. coli
The CXCR4 protein functions as a receptor for the CXC chemokine CXCL12/SDF-1, triggering an increase in intracellular calcium ions and activation of MAPK1/MAPK3. It is actively involved in AKT signaling, which is critical for regulating cell migration, especially in wound healing. CXCR4 Protein, Human (GST) is the recombinant human-derived CXCR4 protein, expressed by E. coli , with N-GST labeled tag. The total length of CXCR4 Protein, Human (GST) is 50 a.a., with molecular weight of ~32.6 kDa.
ACKR3, an atypical chemokine receptor, precisely controls chemokine levels and localization through high-affinity binding, operating independently of ligand-driven signal transduction. It serves as an interceptor, internalizing receptor, and chemokine-scavenger for CXCL11 and CXCL12/SDF1, inducing beta-arrestin recruitment, ligand internalization, and MAPK pathway activation. Essential for regulating CXCR4 in interneurons and promoting survival in glioma cells, ACKR3 also influences malignant hematopoietic cell adhesion and migration. Its regulatory roles extend to heart valve development, axon guidance, and HIVinfection collaboration with CXCR4. ACKR3 Protein, Human (His-SUMO) is the recombinant human-derived ACKR3 protein, expressed by E. coli, with N-SUMO, N-6*His labeled tag. The total length of ACKR3 Protein, Human (His-SUMO) is 40 a.a., with molecular weight of 20.5 kDa.
G protein coupled receptor 9 , GPR9; C-X-C chemokine receptor type 3; CD183; CKR L2; CMKAR3; IP10 R; MigR; CXC-R3; CXCR-3; Mig receptor; IP10 receptor; IP-10 receptor; G protein-coupled receptor 9; chemokine C-X-C receptor 3; interferon-inducible protein 10 receptor; GPR9; CD182; Mig-R; CKR-L2; IP10-R;
Human
E. coli Cell-free
The CXCR3 protein acts as a receptor for CXC chemokines (CXCL9, CXCL10, and CXCL11), affecting human mesangial cells (HMC) through G protein signaling. It binds CCL21 and may promote cell chemotaxis. CXCR3 Protein, Human (Cell-Free, His) is the recombinant human-derived CXCR3 protein, expressed by E. coli Cell-free , with N-6*His labeled tag. The total length of CXCR3 Protein, Human (Cell-Free, His) is 368 a.a., with molecular weight of 44.7 kDa.
ACKR3 is an atypical chemokine receptor that precisely controls chemokine levels and localization through high-affinity binding, operating independently of ligand-driven signaling. It acts as an interceptor, internalization receptor, and chemokine scavenger for CXCL11 and CXCL12/SDF1, inducing β-arrestin recruitment, ligand internalization, and MAPK pathway activation. ACKR3 Protein, Human (Cell-Free, His, SUMO) is the recombinant human-derived ACKR3 protein, expressed by E. coli Cell-free , with N-6*His, N-SUMO labeled tag. The total length of ACKR3 Protein, Human (Cell-Free, His, SUMO) is 362 a.a., with molecular weight of 57.5 kDa.
C-X-C chemokine receptor type 2; GRO/MGSA receptor; High affinity interleukin-8 receptor B; IL-8R B; CD182
Mouse
E. coli Cell-free
CXCR2 protein acts as a receptor for interleukin-8 and induces neutrophil activation through the G protein-mediated phosphatidylinositol-calcium second messenger system. In addition to IL-8, CXCR2 also exhibits high-affinity binding to ligands such as CXCL3, GRO/MGSA, and NAP-2. CXCR2 Protein, Mouse (Cell-Free, His) is the recombinant mouse-derived CXCR2 protein, expressed by E. coli Cell-free , with N-10*His labeled tag. The total length of CXCR2 Protein, Mouse (Cell-Free, His) is 359 a.a., with molecular weight of 43.2 kDa.
