1DFM

Crystal structure of restriction endonuclease BGLII complexed with DNA 16-mer

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	C, D	DNA (5'-D(*TP*AP*TP*TP*AP*TP*AP*GP*AP*TP*CP*TP*AP*TP*AP*A)-3')	polymer	16	4895.2	2
2	A, B	ENDONUCLEASE BGLII	polymer	223	26031.8	2	UniProt (Q45488) In PDB	Bacillus subtilis
3	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	608	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	61854.0
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	61934.1

*Water molecules are not included.