HCC-1 is a CC chemokine that signals through the CCR1 receptor and chemoattracts blood monocytes. It is secreted by various tissues, including skeletal muscle, heart, spleen, liver and bone marrow. Mature HCC-1 is found in four different forms, which are distinguished by differential N-terminal trucation and contain 74, 72, 71, or 66 amino acid residues. Recombinant Human HCC-1 is an 8.4 kDa protein consisting of 72 amino acids, including the four highly conserved residues present in CC chemokines.
Amino Acid Sequence
Determined by its ability to chemoattract human monocytes using a concentration range of 5.0–20.0 ng/ml.
Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1–1.0 mg/ml. Do not vortex. This solution can be stored at 2–8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at –20°C to –80°C.