Measured by its ability to chemoattract 2-day cultured human monocytes. Matsushima, K. et al. (1989) J. Exp. Med. 169:1485. The ED50 for this effect is 0.02-0.08 µg/mL. Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with human CCR2A. The ED50 for this effect is 0.1-0.5 µg/mL.
Source
E. coli-derived human CCL7/MCP-3/MARC protein Gln34-Leu109
>97%, 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.
Applications/Dilutions
Dilutions
Bioactivity
Bioactivity2
Theoretical MW
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.
Publications
Read Publications using 282-P3/CF in the following applications:
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human CCL7/MCP-3 Protein, CF
C-C motif chemokine 7
CCL7
chemokine (C-C motif) ligand 7
FIC
MARC
MCP-3
MCP3Monocyte chemotactic protein 3
MCP-3Small-inducible cytokine A7
MGC138465
Monocyte chemoattractant protein 3
NC28SCYA6
SCYA7MGC138463
small inducible cytokine A7 (monocyte chemotactic protein 3)
Background
MCP-2 and CCL7 are two monocyte chemotactic proteins produced by human MG-63 osteosarcoma cells. Both MCP-2 and CCL7 are members of the C-C family of chemokines and share 62% and 71% amino acid sequence identity, respectively, with MCP-1. CCL7 also shares 58% amino acid identity with MCP-2.
CCL7 cDNA encodes a 99 amino acid residue precursor protein from which the N-terminal 23 amino acid residues are cleaved to generate the 76 amino acid residue mature CCL7. Mature CCL7 contains a potential N-linked and several possible O-linked glycosylation sites.
Similarly to other C-C chemokines, all three MCP proteins are monocyte chemoattractants. In addition, the three MCPs can chemoattract activated NK cells as well as CD4+ and CD8+ T lymphocytes. All three cytokines have also been shown to attract eosinophils and induce histamine secretion from basophils.
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