Purity ≥98% by SDS-PAGE gel and HPLC analyses. MIP-3beta is a CC chemokine that is expressed in the thymus, lymph nodes and in activated bone marrow stromal cells and signals through the CCR7 receptor.MIP-3beta is a chemoattractant for T and B lymphocytes and myeloid progenitor cells.Human MIP-3beta is active on murine cells.Recombinant murine MIP-3beta is a 9.2kD protein containing 83 amino acid residues, including the four highly conserved cysteine residues present in CC chemokines. Biological Activity: Determined by its ability to chemoattract human mature dendritic cells using a concentration range of 10.0-100.0ng/ml. AA Sequence: GANDAEDCCL SVTQRPIPGN IVKAFRYLLN EDGCRVPAVV FTTLRGYQLC APPDQPWVDR IIRRLKKSSA KNKGNSTRRS PVS Crossreactivity: Human Quality Control: Verified by N-terminal and Mass Spectrometry analyses (when applicable). Endotoxin: <0.1ng/ug of protein (<1EU/ug). Protein Content: Verified by UV Spectroscopy and/or SDS-PAGE gel.