Be in the cast of

• Be a part of, as a picture
• Join the cast of
• ___ self-defense (fight back): 2 wds
• Protein found in muscles
• __ self-defense
• Words before "self-defense" or "good faith"
• --- self-defense
• Join the cast of, as a movie
• Protein in muscles

Wikipedia Word definitions in Wikipedia
Actin is a family of globular multi-functional proteins that form microfilaments . It is found in essentially all eukaryotic cells (the only known exception being nematode sperm), where it may be present at concentrations of over 100 μM . An actin protein's ...