Figure 4: Genomic organization of the CC chemokine major cluster. The maps shown are based on the Ensembl Genome Browser and our analyses. Although the human gene names for CCL3-like and CCL4-like genes shown in the map are based on the gene assignments of the Hugo Gene Nomenclature Committee, Colobran et al. [10, 29] proposed different names for these genes based on their coding sequence similarity. Human CCL3P1 (previous gene symbol CCL3L2 [30]) located between CCL4L1 and CCL3L1 is indicated as CCL3-ps for simplicity. Two human CCL3-ps genes on each side of CCL18 were identified in our previous study [31]. The gene symbol for the mouse Ccl16 pseudogene is Ccl16-ps [32].