NFYA and breast cancer: NFYA has two types of splicing variants: a long-form (NFYAv1) and a short-form (NFYAv2) that lacks the 29 amino acids encoded by exon 3, including the Q-rich transactivation domain, and these two variants have been reported to perform different functions in breast cancer (Li et al., 1992; Okada et al., 2022).