Chemokine_CC: 1 of 4 subgroup designations based on the arrangement of the two N-terminal cysteine residues; includes a number of secreted growth factors and interferons involved in mitogenic, chemotactic, and inflammatory activity; some members (e.g. 2HCC) contain an additional disulfide bond which is thought to compensate for the highly conserved Trp missing in these; chemotatic for monocytes, macrophages, eosinophils, basophils, and T cells, but not neutrophils; exist as monomers and dimers, but are believed to be functional as monomers; found only in vertebrates and a few viruses; a subgroup of CC, identified by an N-terminal DCCL motif (Exodus-1, Exodus-2, and Exodus-3), has been shown to inhibit specific types of human cancer cell growth in a mouse model. See CDs: Chemokine (cd00169) for the general alignment of chemokines, or Chemokine_CXC (cd00273), Chemokine_C (cd00271), and Chemokine_CX3C (cd00274) for the additional chemokine subgroups, and Chemokine_CC_DCCL for the DCCL subgroup of this CD.
Jiyao W et al.(2023). "The conserved domain database in 2023.",