4KBG

almost closed conformation of the helicase core of the RNA helicase Hera

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Heat resistant RNA dependent ATPase	polymer	365	39999.9	2	UniProt (Q72GF3) Pfam (PF00270) Pfam (PF00271) In PDB	Thermus thermophilus
2	A, B	SULFATE ION	non-polymer		96.1	6	Chemie (SO4)
3		water	water		18.0	55	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	79999.9
Non-Polymers*	Number of molecules	6
	Total formula weight	576.4
All*	Total formula weight	80576.3

*Water molecules are not included.