2W5M

RNASE A-PYROPHOSPHATE ION COMPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	RIBONUCLEASE PANCREATIC	polymer	124	13708.3	2	UniProt (P61823) Pfam (PF00074)	BOS TAURUS (CATTLE)	RNASE 1, RNASE A, RIBONUCLEASE A
2	C, D (A, B)	PYROPHOSPHATE 2-	non-polymer		176.0	2	Chemie (POP)
3	E, F (A, B)	water	water		18.0	125	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	27416.7
Non-Polymers*	Number of molecules	2
	Total formula weight	351.9
All*	Total formula weight	27768.6

*Water molecules are not included.