Genes involved in selenium uptake and transport, which may be dysregulated in states of selenium deficiency, include SELENOID, GPX1, GPX4, SELENON, SELENIUM, SELENOF, SELENOW, SELENOT, SELENO, and SEPHS2 (Santesmasses et al. 2020; Hesketh 2008). The gene discussed is SEPHS2; the disease is selenium deficiency.