4M2Z

Crystal structure of RNASE III complexed with double-stranded RNA and CMP (TYPE II CLEAVAGE)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Ribonuclease 3	polymer	221	26147.4	2	UniProt (O67082) Pfam (PF00636) Pfam (PF00035) In PDB	Aquifex aeolicus	Ribonuclease III, RNase III
2	C, D	RNA10	polymer	27	8705.2	2
3	A, B, C, D	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
4	C, D	CYTIDINE-5'-MONOPHOSPHATE	non-polymer		323.2	2	Chemie (C)
5		water	water		18.0	22	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	69705.2
Non-Polymers*	Number of molecules	8
	Total formula weight	792.2
All*	Total formula weight	70497.4

*Water molecules are not included.