CCL4 Protein, Human (P.pastoris, His) is a small cytokine of the CC chemokine subfamily that binds to the CCR5 chemokine receptor on the cell surface, promotes leukocyte aggregation under various inflammatory conditions, and contributes to immune protection against human immunodeficiency virus type 1. CCL4 Protein, Human (P.pastoris, His) is a recombinant human CCL4 (A24-Q92) expressed by P. pastoris with a His tag at the C-terminu[1].
