The mucosa-associated epithelial chemokine CCL28 is a common mucosal chemokine which is constitutively expressed by epithelial cells in most mucosal sites. Both CCL28 and CCL25 have recently been shown to be essential for lymphocyte migration to gastrointestinal tissues. CCL28 attracts IgA ASC, but not IgG or IgM ASC, from both intestinal and extraintestinal mucosal tissue, while CCL25 preferentially attracts IgA ASC from the small intestine and its draining lymphoid tissues, as well as alpha-4-beta-7(+) T cells.
<1.0 EU/μg of recombinant protein as determined by the LAL method.
Biological Activity Comment
Determined by the ability to chemoattract human lymphocytes using a concentration range of 2-10 ng/mL.
Weight
12.0 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 CCL-28 was lyophilized from PBS pH 7.4.
Purity
>95% as determined by SDS-PAGE
Storage
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.