1U1B

Structure of bovine pancreatic Ribonuclease A in complex with 3'-phosphothymidine (3'-5')-pyrophosphate adenosine 3'-phosphate

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
2	C, D (A, B)	5'-PHOSPHOTHYMIDINE (3'-5')-PYROPHOSPHATE ADENOSINE 3'-PHOSPHATE	non-polymer		809.4	2	Chemie (PAX)
3	E, F (A, B)	water	water		18.0	72	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	1618.7
All*	Total formula weight	29035.4

*Water molecules are not included.