Table 1.

Nomenclature of myosin light chains and heavy chains

MHC	Myosin heavy chain
MLC	Myosin light chain
MLC-1	Essential myosin light chain
MLC-2	Phosphorylatable (regulatory) myosin light chain
ALC-1	Essential myosin light chain, atrial isoform
ALC-2	Phosphorylatable (regulatory) myosin light chain, atrial isoform
VLC-1	Essential myosin light chain, ventricular isoform
VLC-2	Phosphorylatable (regulatory) myosin light chain, ventricular isoform
VLC-2*	Phosphorylatable (regulatory) myosin light chain, additional ventricular isoform