Human Chemokines

Chemokines belong to a family of pro-inflammatory activation-inducible cytokines previously referred to as members of SIS family of cytokines, SIG family of cytokines, SCY family of cytokines, Platelet factor-4 superfamily or Intercrines. These proteins are mainly chemotactic for different cell types. Chemokines molecular weight ranges from 8 kDa to10 kDa and show 20%-50 % sequence homology among each other at the protein level. Chemokines share common gene & tertiary structure. Chemokines possess a number of conserved cysteine residues involved in intramolecular disulfide bond formation.