名称：重组大鼠MCP-3/CCL7
Synonyms：Protein FIC, Small-inducible Cytokine A7, Intercrine/chemokine MARC
Accession：Q9QXY8
GeneID：287561
Source：Escherichia coli.
Molecular Weight：Approximately 8.5 kDa, a single non-glycosylated polypeptide chain containing 74 amino acids.
Quantity：2μg/10μg/1000μg
AA Sequence：QPDGTNSSTC CYVKKQKIPK RNLKSYRKIT SSRCPWEAVI FKTKKGMEVC AEAHQKWVEE AIAYLDMKTS TPKP
Purity：> 95 % by SDS-PAGE and HPLC analyses.
Biological Activity：Fully biologically active when compared to standard. The biologically active determined by a chemotaxis bioassay using human monocytes is in a concentration range of 10-100 ng/ml.
Physical Appearance：Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation：Lyophilized from a 0.2 μm filtered concentrated solution in 2 × PBS, pH 7.4.
Endotoxin：Less than 1 EU/μg of rRtMCP-3/CCL7 as determined by LAL method.
Reconstitution：We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Stability & Storage：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.
Reference：1. Kulmburg PA, Huber NE, Scheer BJ, et al. 1992. J Exp Med. 176:1773-8.
2. Thirion S, Nys G, Fiten P, et al. 1994. Biochem Biophys Res Commun. 201:493-9.
Background：Rat CCL7, belonging to the CC chemokine family, is also named as MCP-3, because the sequence comparison suggested that the rat CCL7 is a homologue of the human MCP-3 and is postulated the rat MCP-3. The MCP-3 protein family signals through CCR2 expect MCP-1 and possess cross-reacts across species. CCL7/MCP3 has chemotactic functions for monocytes and eosinophils, but not for neutrophils. Additionally, it can activated NK cells as well as CD4+ and CD8+ T lymphocytes. CCL7 was found to interact with MMP2.
SDS-PAGE：
