Proteinuria, Low Molecular Weight, with Hypercalciuria and Nephrocalcinosis, also known as proteinuria, low molecular weight, with hypercalciuric nephrocalcinosis, is related to dent disease 1 and fanconi renotubular syndrome 1. An important gene associated with Proteinuria, Low Molecular Weight, with Hypercalciuria and Nephrocalcinosis is CLCN5 (Chloride Voltage-Gated Channel 5). Affiliated tissues include bone and kidney, and related phenotypes are nephrocalcinosis and low-molecular-weight proteinuria