*4.4.4 Chemokines*

Chemokines constitute a family of chemoattractant cytokines and are subdivided into four families on the basis of the number and spacing of the conserved cysteine residues in the N-terminus of the protein. They seem to play a role in selectively recruiting monocytes, neutrophils, and lymphocytes, along with inducing chemotaxis through the activation of G-protein-coupled receptors.
