Schematic representation of WC1 loci organization. 13 WC1 genes were found within two loci on chromosome 5 with CD163, another group B SRCR molecule, found within one of the WC1 loci. WC1 gene designations, orientations and Bovine Genome Scaffold identifications are as indicated. Diagram is not shown to scale. WC1-11 was identified in two gene prediction models; however, evidence suggests that there is only a single WC1-11 gene.