ACE2 and COVID-19: Notably, KIM1 and ACE2 coexpressed in the kidney, colon, rectum, testis, and gallbladder (Supplementary Figure S1C and F), which are all among the target organs of SARS-CoV-2 (Cha et al., 2020), implicating a close correlation of KIM1 with COVID-19 manifestations.