Number of Protein Chains:2
- Classes: All beta proteins
 - Folds: triple barrel
 - Superfamilies: Rap30/74 interaction domain-like
 - Families: Rap30/74 interaction domains
 
Protein Domains:
- TFIIF alpha subunit, Rap74
 - TFIIF beta subunit, Rap30
 
	* [ ] : Polypeptide  - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
	
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
