1. A method of producing a functional class XIV myosin polypeptide, the method comprising,
co-expressing three or more polynucleotides in a heterologous expression-system cell, wherein the three or more polynucleotides
comprise a class XIV heavy chain polypeptide-encoding polynucleotide, a first myosin light chain polypeptide-encoding polynucleotide,
and a parasite co-chaperone polypeptide-encoding polynucleotide, wherein the three or more polynucleotides are co-expressed
in the cell under conditions suitable to produce a functional class XIV myosin polypeptide comprising the class XIV heavy
chain polypeptide and the first myosin light chain polypeptide.