SPTAN1 and breast cancer: These four genes, Ahnak (p < 0.01) (neuroblast differentiation-associated protein AHNAK; aka desmoyokin), Cdc37 (p = 0.03) (leukocyte antigen CD37), Sptan1 (p < 0.01) (spectrin alpha, non-erythrocytic 1), and Dnajb1 (p < 0.01) (DnaJ heat shock protein family [Hsp40] member B1), were also significantly downregulated in invasive BC.