35SB

Polar Interface Homodimer - S4A

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, E... (A, B, C, D, E...)	S4A	polymer	83	9627.2	8		Escherichia coli
2	I, J, K, L, M... (A, B, C, D, H)	NITRATE ION	non-polymer		62.0	6	Chemie (NO3) PubChem (943)
3	O, P, Q, R, S... (A, B, C, D, E...)	water	water		18.0	304	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	77018.0
Non-Polymers*	Number of molecules	6
	Total formula weight	372.0
All*	Total formula weight	77390.0

*Water molecules are not included.