PADI4 shows different molecular weights in different studies, and even the molecular weight of PADI4 is not completely the same in the same tumor cells (Liu et al. 2019a; Zheng et al. 2016a; Chang et al. 2011; Chang et al. 2022; Hollingsworth et al. 2018; Uysal-Onganer et al. 2021). This evidence concerns the gene PADI4 and neoplasm.