8UN9

Crystal structure of the MrfB exonuclease catalytic core

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Exonuclease MrfB	polymer	247	28617.7	2	UniProt (A0A0D1KQV6) Pfam (PF13482) UniProt (by SIFTS) (P50837) In PDB	Bacillus subtilis
2	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3		water	water		18.0	241	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	57235.5
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	57284.1

*Water molecules are not included.