2NUF

Crystal structure of RNase III from Aquifex aeolicus complexed with ds-RNA at 2.5-Angstrom 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)	28-MER	polymer	28	9010.4	2
2	C, D (A, B)	Ribonuclease III	polymer	221	26147.4	2	UniProt (O67082) Pfam (PF00636) Pfam (PF00035)	Aquifex aeolicus	RNase III
3	E, F, G, H, I... (C, D, A, B)	MAGNESIUM ION	non-polymer		24.3	8	Chemie (MG)
4	M, N, O, P (C, D, A, B)	water	water		18.0	120	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	70315.6
Non-Polymers*	Number of molecules	8
	Total formula weight	194.4
All*	Total formula weight	70510.0

*Water molecules are not included.