ATP5IF1 and cancer: Increased IF1 expression has been observed in a number of cancers compared to corresponding normal cells and tissues (Sanchez-Cenizo et al., 2010; Formentini et al., 2012; Sanchez-Arago et al., 2013; Song et al., 2014; Wu et al., 2015; Yin et al., 2015; Gao et al., 2016; Santacatterina et al., 2016).