SNP rs71624119 mapping to the ANKRD55 locus was the only SNP that reached genome‐wide significance for anti‐CCP–negative RA in the ImmunoChip study (i.e., P below the threshold for genome‐wide significance at P = 5.0 × 10−8) and was the only SNP in common between the top hits from the meta‐analysis and from the UK ImmunoChip cohort (Table 3). This evidence concerns the gene ANKRD55 and rheumatoid arthritis.