- Classes: Low resolution protein structures
 - Folds: Muscle protein complexes
 - Superfamilies: Muscle protein complexes
 - Families: Muscle protein complexes
 
Protein Domains:
- Actinin
- [A2]
 
 - Averaged rigor crossbridges from tomograms of insect flight muscle
- [A14B4C4D4], [A14B6C6D6], [A14B6C5D5], [A14B5C5D5]
 
 - Heavy meromyosin subfragment
- [A2B2C2]
 
 
	* [ ] : Polypeptide  - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
