Due to this reason, in addition to ZIP5 and ZIP14, we have also examined ZnT1 (Zhu et al., 2021), ZnT7 (Tepaamorndech, Huang & Kirschke, 2011), ZIP7 (Taylor et al., 2008) transporters which have been previously reported as highly correlated with tumor progression. The gene discussed is SLC30A1; the disease is neoplasm.