Figure 1. Wild type HSF4b (BAA84583.1) and putative HSF4b^lop11 proteins. A schematic of HSF4b conserved domains: the DNA binding domain (DBD), the oligomerization domain (HR-A/B), the 30 amino acids HSF4b isoform domain (b) and the 23 amino acids originating from the ETn insertion (gray box). The ETn insertion results in a premature stop and a loss of 132 amino acids from the COOH-terminal domain. Numbers on the top of each figure represent the amino acid residues.