Name : GRO alpha/CXCL1, Human
Product Concentration :
Background :
Chemokine (C-X-C motif) ligand 1 (CXCL1) is a small cytokine belonging to the CXC chemokine family that was previously called GRO1 oncogene, GRO-α, KC, neutrophil-activating protein 3 (NAP-3) and melanoma growth stimulating activity, alpha (MSGA-α). Human GRO-α, GRO-β (MIP2α),and GRO-γ (MIP2β)are products of three distinct, nonallelichuman genes. GRO-β and GRO-γ share 90% and 86% amino acid sequence homology with GROα, respectively. All three isoforms of GRO are CXC chemokines that can signal through the CXCR1 or CXCR2 receptors. GRO expression is inducible by serum or PDGF and/or by a variety of inflammatory mediators, such as IL-1 and TNF, in monocytes, fibroblasts, melanocytes and epithelial cells. In certain tumor cell lines, GRO is expressed constitutively. Similar to other alpha chemokines, the three GRO proteins are potent neutrophil attractants and activators. Additionally, these chemokines are also active toward basophils.All three GROs can bind with high affinity to the IL-8 receptor type B.
Biological Activity :
The EC50 value of human GRO alpha/CXCL1 on Ca2+ mobilization assay in CHO-K1/Gα15/hCXCR2 cells (human Gα15 and human CXCR2 stably expressed in CHO-K1 cells) is less than 100.0 ng/ml.
expression system :
E. coli
Tag :
GRO-α (Ala35-Asn107)Accession # P09341
Protein Accession No. :
P09341
Synonyms :
Growth Regulated Protein/Melanoma Growth Stimulatory Activity; GRO α; MGSA α; CXCL1; NAP-3; GRO1; KC (murine); CINC (rat)
Molecular Weight :
~7.8 kDa, on SDS-PAGE under reducing conditions.
Purity :
> 95% as analyzed by SDS-PAGE
Product Concentration :
Lyophilized after extensive dialysis against PBS.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.
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