1WBU

Fragment based lead discovery using crystallography

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	polymer	124	13708.3	2	UniProt (P61824) Pfam (PF00074) UniProt (by SIFTS) (P61823) In PDB	BOS TAURUS (BOVINE)	RIBONUCLEASE A, RNASE 1, RNASE A
2	A, B	5-AMINO-1H-PYRIMIDINE-2,4-DIONE	non-polymer		127.1	2	Chemie (WBU)
3		water	water		18.0	222	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	254.2
All*	Total formula weight	27670.9

*Water molecules are not included.