For the other three genes located in the same region of Chromosome 4: KIAA0922 = TMEM131L (transmembrane protein 131-like), RNF175 (ring finger protein 175) and SFRP2 (secreted frizzled-related protein 2), no literature data linking them to inflammatory bowel disease or mycobacterial disease has been found. Here, RNF175 is linked to inflammatory bowel disease.