1RDD

CRYSTAL STRUCTURE OF ESCHERICHIA COLI RNASE HI IN COMPLEX WITH MG2+ AT 2.8 ANGSTROMS RESOLUTION: PROOF FOR A SINGLE MG2+ SITE

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RIBONUCLEASE H	polymer	155	17623.0	1	UniProt (P0A7Y4) Pfam (PF00075) In PDB	Escherichia coli
2	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3		water	water		18.0	35	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	17623.0
Non-Polymers*	Number of molecules	1
	Total formula weight	24.3
All*	Total formula weight	17647.3

*Water molecules are not included.