Figure 1.

Schematic diagrams of variations in chemokine structure between four subfamilies. Diagrams highlight the variation in number of cysteines (orange circle) between the subfamilies, as well as presence of non-specific amino acids (yellow circle) present between N-terminus cysteines in CXC and CX3C chemokines. Note presence of mucin-like domain in CX3C chemokines, allowing for surface adhesion and existence as a membrane-bound chemokine [created with BioRender.com, accessed on 14 July 2023].