Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using rat neutrophils is in a concentration range of 10-100 ng/ml.
Appearance
Sterile filtered white lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2 um filtered concentrated solution in 20 mM PB, pH 7.4, 150 mM NaCl.
Endotoxin
Less than 1 EU/ug of rRtCINC-1/CXCL1 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 and 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.
References
1. Haskill S, Peace A, Morris J, et al. 1990. Proc Natl Acad Sci U S A. 87:7732-6.2. Richmond A, Thomas HG. 1988. J Cell Biochem. 36:185-98.3. Iida N, Grotendorst GR. 1990. Mol Cell Biol. 10:5596-9.4. Tsai HH, Frost E, To V, et al. 2002. Cell. 110:373-83.5. Moser B, Clark-Lewis I, Zwahlen R, et al. 1990. J Exp Med. 171:1797-802.6. Devalaraja RM, Nanney LB, Du J, et al. 2000. J Invest Dermatol. 115:234-44.
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