Reactivity | MuSpecies Glossary |
Applications | Bioactivity |
Format | Carrier-Free |
Details of Functionality | Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with human CXCR2. The ED50 for this effect is 25-100 ng/mL. |
Source | E. coli-derived mouse CXCL3/GRO gamma/CINC-2/DCIP-1 protein Ala28-Ser100 |
Accession # | |
N-terminal Sequence | Ala28 |
Protein/Peptide Type | Recombinant Proteins |
Gene | Cxcl3 |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Endotoxin Note | <0.01 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 7.9 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
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SDS-PAGE | 6.5 kDa, reducing conditions |
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Publications |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Lyophilized from a 0.2 μm filtered solution in PBS. |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Reconstitution Instructions | Reconstitute at 100 μg/mL in PBS. |
CXCL3 is also known as MIP-2 beta (macrophage inflammatory protein 2 beta), or DCIP-1 (dendritic cell inflammatory protein-1) in mouse, CINC2 (cytokine-induced neutrophil attractant 2) in rat, and GRO-gamma (growth-regulated oncogene gamma) in humans (1, 2). It is an 8 kDa proinflammatory member of the CXC subfamily of heparin-binding chemokines, also called alpha chemokines (1 - 4). The Glu-Leu-Arg (ELR) motif near the CXCL3 N-terminus confers angiogenic properties and distinguishes it from interferon-inducible ELR- CXC chemokines, which are angiostatic (4). ELR+ and ELR- chemokines use CXCR2 and CXCR3 receptors, respectively (3, 4). Mature mouse CXCL3 shares 88% and 57% amino acid (aa) sequence identity with rat and human CXCL3, respectively. Among mouse ELR+ chemokines, it shares 82% aa sequence identity with CXCL2/GRO-beta /MIP-2 and 34% - 58% with CXCL1/GRO-alpha /KC, CXCL5/ENA-78 and CXCL7/NAP-2. Due to their similar sequence and activity, CXCL2 and CXCL3 are sometimes referred to collectively as CXCL2/3, but are separate gene products (4 - 6). Mouse CXCL3 expression is induced in macrophages and early in maturation of DC by bacterial products such as lipopolysaccharides, and other inflammatory mediators (1, 7). It is chemotactic for CXCR2-expressing neutrophils, helping to recruit them to areas of inflammation (1, 7). ELR+ chemokines also elicit endothelial cell chemotaxis, stimulating angiogenesis and playing a role in tumor development (3, 4). ELR+ chemokines upregulated by ischemia play a role in ischemia-reperfusion injury (5, 6). A decoy receptor, DARC (Duffy antigen receptor for chemokines) competes with CXCR2 for ELR+ chemokine binding, thus downregulating their effect (8). Neutrophil influx may also be downregulated by MMP-12, which has been found to inactivate CXCL3 and other ELR+ chemokines by cleaving them at the ELR site (9).
Publication using 5568-CA/CF | Applications | Species |
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Suppression of Medulloblastoma Lesions by Forced Migration of Preneoplastic Precursor Cells with Intracerebellar Administration of the Chemokine Cxcl3 Front Pharmacol, 2016-12-16;7(0):484. 2016-12-16 [PMID: 28018222] (In Vivo, Mouse) | In Vivo | Mouse |
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