Article
A non-glycosaminoglycan-binding variant of CC chemokine ligand 7 (monocyte chemoattractant protein-3) antagonizes chemokine-mediated inflammation.
Journal of immunology (Baltimore, Md. : 1950) - 15 Jul 2005
Ali Simi, Robertson Helen, Wain Julie H, Isaacs John D, Malik Ghada, Kirby John A
Abstract excerpt
A non-glycosaminoglycan (GAG)-binding variant of the pleiotropic chemokine CCL7 was generated by mutating to alanine the basic (B) amino acids within an identified (44)BXBXXB(49) GAG-binding motif. Unlike wild-type (wt) CCL7, the mutant sequence had no affinity for heparin. However, the mutant retained a normal affinity for CCR1, CCR2b, and CCR3, and produced a normal calcium flux in mononuclear leukocytes. Both...
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