XCL1, also known as lymphotactin or ATAC, is the sole member of the C subgroup of chemokines, and more importantly, is produced mainly by activated CD8 T cells (and to a lesser extent by natural killer and mast cells). The chemotactic activity of XCL1 is restricted to lymphocytes and has no effect on monocytes.
Quantity
20 µg
Regulatory
RUO
Source
E. coli
Host
Human
Endotoxin Level
<1.0 EU/μg of recombinant protein as determined by the LAL method.
Biological Activity Comment
Activity was determined by the ability to induce chemotaxis of human T-cells at concentrations ranging between 50-100 ng/ml.
Weight
10.0 kDa
Description
A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
Format
Lyophilized PowderRecombinant Lymphotactin was lyophilzed from 0.2μm filtered PBS, pH 7.0.
Purity
>95% as determined by SDS-PAGE
Storage
The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.