1U9S

Crystal structure of the specificity domain of Ribonuclease P of the A-type

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	RIBONUCLEASE P	polymer	161	52399.4	1	GenBank (48272)		ribonuclease P RNA subunit
2	B, C, D, E, F... (A)	BARIUM ION	non-polymer		137.3	21	Chemie (BA) PubChem (104810)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	52399.4
Non-Polymers*	Number of molecules	21
	Total formula weight	2883.9
All*	Total formula weight	55283.3

*Water molecules are not included.