9VKU

protein structure

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	RNA-dependent DNA polymerase	polymer	499	58319.0	4	UniProt (A0A6D0I497) Pfam (PF00078)	Escherichia coli
2	E, F, G, H (E, F, G, H)	RNA (188-MER)	polymer	188	60361.4	4		Escherichia coli
3	I, J, K, L, M... (A, B, D, E, F...)	MAGNESIUM ION	non-polymer		24.3	7	Chemie (MG)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	474721.4
Non-Polymers*	Number of molecules	7
	Total formula weight	170.1
All*	Total formula weight	474891.5

*Water molecules are not included.