NFASC and head and neck squamous cell carcinoma: To correlate the mRNA and protein levels of the isoforms, particularly NF-YAs and NF-YAl, we analyzed their relative levels in RNA-seq data from 35 HNSCC cell lines: the vast majority (26) had a large excess of NF-YAs: only Hs840T, YD8 and SNU46 had higher amounts of NF-YAl (Figure 3A).