Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human peripheral blood lymphocytes is in a concentration range of 10-100ng/ml.
Lyophilized from a 0.2μm filtered concentrated solution in 2X PBS, pH7.4, with 5% trehalose.
Endotoxin
Less than 1EU/μg of rMuCTACK/CCL27 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 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
Category
Chemokines
Background
CCL27, also named IL-11 R-alpha-locus chemokine (ILC), skinkine, eskine and cutaneous T-cell-attracting chemokine (CTACK), is a small cytokine belonging to the CC chemokine family. CCL27 is expressed in numerous tissues, including gonads, thymus, placenta and skin and it elicits its chemotactic effects by binding to the chemokine receptor CCR10. CCL27 can attract skin-associated memory T-lymphocytes. Studies showed it may play a role in mediating homing of lymphocytes to cutaneous sites and cell migration during embryogenesis. Mature mouse CCL27 is a 95 amino acid (a.a.) protein that shares 57%a.a. and 87%a.a. sequence identity with human and rat CCL27, respectively. It shares 18%~31%a.a. sequence identity with other mouse CC chemokines.