9RSA

CRYSTAL STRUCTURE OF TWO COVALENT NUCLEOSIDE DERIVATIVES OF RIBONUCLEASE A

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 A	polymer	124	13708.3	2	UniProt (P61823) Pfam (PF00074) In PDB	Bos taurus (cattle)
2	A, B	3'-DEOXY-3'-ACETAMIDO-URIDINE	non-polymer		285.3	2	Chemie (ADU)
3		water	water		18.0	181	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	570.5
All*	Total formula weight	27987.2

*Water molecules are not included.