Sequences of vELC isoforms: porcine (NP_001265702, 197 residues) and its 17 amino acid N-terminal truncation, Δ17; mouse (P09542, 204 residues); human (P08590, 195 residues) expressed in mice in this study (WT) and its 43 amino acid N-terminal truncation mutant, Δ43. Sequences of human skeletal muscle ELC isoforms: A1 (NP_524144.1, 194 residues) and A2 (P06741, 150 residues). ELC(A2) is the model for Δ43. Following I60 are 144 residues not shown.