Recombinant Mouse CCL25/TECK Protein Summary
Details of Functionality |
Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with human CCR9. The ED50 for this effect is 0.1-0.5 µg/mL. |
Source |
E. coli-derived mouse CCL25/TECK protein Gln24-Asn144, with an N-terminal Met |
Accession # |
|
N-terminal Sequence |
Met |
Protein/Peptide Type |
Recombinant Proteins |
Gene |
Ccl25 |
Purity |
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Endotoxin Note |
<0.10 EU per 1 μg of the protein by the LAL method. |
Applications/Dilutions
Dilutions |
|
Theoretical MW |
14 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. |
SDS-PAGE |
16-17 kDa doublet, reducing conditions |
Publications |
Read Publications using 481-TK in the following applications:
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Packaging, Storage & Formulations
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.
|
Buffer |
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
Purity |
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Reconstitution Instructions |
Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Mouse CCL25/TECK Protein
Background
CCL25, also known as TECK (thymus-expressed chemokine), is a CC chemokine that regulates the trafficking of lymphocytes in the thymus and small intestine. Mature mouse CCL25 shares 40% and 81% amino acid sequence identity with human and rat CCL25, respectively (1). CCL25 is produced by stromal cells in the thymus and epithelial cells of the small intestine, particularly the jejunum and ileum (1-3). It binds to and induces chemoattraction through CCR9 (1, 4, 5), and both human and mouse proteins act on human CCR9 (4). CCR9 is expressed on immature pre-T cells and thymocytes (5, 6). CCL25 induces the homing of several lymphocyte populations to the small intestine (3), including Integrin alpha 4 beta 7
+ gamma δ T cells (6, 7), Integrin alpha E beta 7
+ CD8
+ T cells (8), and IgA-producing plasma cells (2). In cancer, functional CCR9 mediates the metastasis of melanoma cells to the small intestine (9), contributes to the CCL25-dependent migration and invasion of some breast carcinomas (10), and attracts mesenchymal stromal cells to CCL25-expressing multiple myelomas (11). CCL25 contributes to the severity of chronic inflammation in rheumatoid arthritis where it attracts CCR9
+ monocytes and macrophages (12), in endometriosis where it promotes the invasiveness of stromal cells (13), and in atherosclerosis where it contributes to the accumulation of CCR9
+ macrophages in arterial plaques (14).
- Vicari, A.P. et al. (1997) Immunity 7:291.
- Bowman, E.P. et al. (2002) J. Exp. Med. 195:269.
- Kunkel, E.J. et al. (2000) J. Exp. Med. 192:761.
- Zaballos, A. et al. (1999) J. Immunol. 162:5671.
- Youn, B.-S. et al. (1999) Blood 94:2533.
- Uehara, S. et al. (2002) J. Immunol. 168:134.
- Costa, M.F.S. et al. (2012) Eur. J. Immunol. 42:1250.
- Svensson, M. et al. (2002) J. Clin. Invest. 110:1113.
- Amersi, F.F. et al. (2008) Clin. Cancer Res. 14:638.
- Johnson-Holiday, C. et al. (2011) Int. J. Oncol. 38:1279.
- Xu, S. et al. (2012) Stem Cells 30:266.
- Schmutz, C. et al. (2010) Arthritis Res. Ther. 12:R161.
- Wang, Y. et al. (2010) Cell. Mol. Immunol. 7:51.
- Alla, J.A. et al. (2010) J. Biol. Chem. 285:23496.
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