1RVB

MG2+ BINDING TO THE ACTIVE SITE OF ECO RV ENDONUCLEASE: A CRYSTALLOGRAPHIC STUDY OF COMPLEXES WITH SUBSTRATE AND PRODUCT DNA AT 2 ANGSTROMS RESOLUTION

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)	DNA (5'-D(*AP*AP*AP*GP*AP*TP*AP*TP*CP*TP*T)-3')	polymer	11	3356.2	2
2	C, D (A, B)	PROTEIN (ECO RV (E.C.3.1.21.4))	polymer	244	28559.2	2	UniProt (P04390) Pfam (PF09233)	Escherichia coli
3	E, F (B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	G, H, I, J (C, D, A, B)	water	water		18.0	185	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	63830.8
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	63879.4

*Water molecules are not included.