2G4W

anomalous substructure of ribonuclease A (C2)

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 pancreatic	polymer	124	13708.3	2	UniProt (P61823) Pfam (PF00074) In PDB	Bos taurus (cattle)	RNase 1, RNase A
2	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	B	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4		water	water		18.0	87	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	131.5
All*	Total formula weight	27548.2

*Water molecules are not included.