The function of CXCL1 (C-X-C motif chemokine ligand 1, Ensembl gene identifier ENSG00000163739) is as follows. Has chemotactic activity for neutrophils. May play a role in inflammation and exerts its effects on endothelial cells in an autocrine fashion. In vitro, the processed forms GRO-alpha(4-73), GRO- alpha(5-73) and GRO-alpha(6-73) show a 30-fold higher chemotactic activity. .