These tests for presence/absence of highly abundant OTUs (mean relative abundance ≥1%) showed that after correction for false discovery rate (FDR), 2 specific OTUs (out of a total of 13 highly abundant OTUs) were strongly associated with psoriasis status (Acidobacteria Gp4 (OTU 3,855, P <0.002) and Schlegelella (OTU 13,613, P <0.00002). The gene discussed is CD36; the disease is psoriasis.