1P4D

F factor TraI Relaxase Domain

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 (A, B, C)	TraI protein	polymer	330	36342.5	3	UniProt (P14565) Pfam (PF08751)	Escherichia coli	DNA helicase I, Contains: Trai* protein
2	D, J, P (A, B, C)	MAGNESIUM ION	non-polymer		24.3	3	Chemie (MG)
3	E, F, G, H, I... (A, B, C)	1,2-ETHANEDIOL	non-polymer		62.1	11	Chemie (EDO)
4	R, S, T (A, B, C)	water	water		18.0	162	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	109027.6
Non-Polymers*	Number of molecules	14
	Total formula weight	755.7
All*	Total formula weight	109783.3

*Water molecules are not included.