3OQY

Semi-synthetic ribonuclease S: para-cyano-phenylalanine at position 8

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	b, a	Ribonuclease pancreatic	polymer	15	1778.0	2	UniProt (P61823) In PDB	Bos taurus	RNase 1, RNase A
2	B, A	Ribonuclease pancreatic	polymer	104	11556.0	2	UniProt (P61823) Pfam (PF00074) In PDB	Bos taurus (bovine cow domestic cattle domestic cow)	RNase 1, RNase A
3		water	water		18.0	354	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	26667.9
All*	Total formula weight	26667.9

*Water molecules are not included.