POR and sarcoidosis: Our study found that the risk T allele of a sarcoidosis-associated SNP, rs112463197, in the STYXL1-SRRM3 locus was associated with increased POR expression in many of the organs affected by sarcoidosis, including the lungs, skin, sigmoid colon, esophagus, minor salivary gland, kidney, spleen, heart, nerves, pituitary, spinal cord, and liver.