The gene set for macaque was built using the Ensembl pipeline. The species-specific resources for macaque are relatively limited, so we decided to take a combined approach utilizing macaque's great similarity to human to aid our annotation efforts. The gene structures are mainly based on alignments to human and macaque protein data. Both macaque and human cDNAs were used to add UTR structures, and finally gene predictions based on Uniprot proteins and human cdnas were used to fill gaps in the annotation.