KLF13 and cancer: However, of the PhosphoSitePlus database (a collation of data from targeted and mass spectrometry (MS)-based approaches) (https://www.phosphosite.org/homeAction.action, accessed on 31 August 2023) revealed a large number of serine and threonine residues in human KLF13 that are subject to phosphorylation, and a number of lysine residues subject to ubiquitylation or acetylation, including in the context of cancer(s) (Figure 3).