MAP4 and heart failure: Supporting the notion that the tubulin network is distorted in heart failure cells, mRNA expression analysis by qPCR confirmed an overall increase in the expression of α1A-tubulin (TUBA1A), β2B-tubulin (TUBB2B), β3-tubulin (TUBB3), γ-1tubulin (TUBG1), and microtubule-associated proteins (MAP4; Figure S6D).