1QHC

CRYSTAL STRUCTURE OF RIBONUCLEASE A IN COMPLEX WITH 5'-PHOSPHO-2'-DEOXYURIDINE-3'-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	PROTEIN (RIBONUCLEASE A)	polymer	124	13708.3	2	UniProt (P61823) Pfam (PF00074) In PDB	Bos taurus (cattle)
2	A, B	ADENYLATE-3'-PHOSPHATE-[[2'-DEOXY-URIDINE-5'-PHOSPHATE]-3'-PHOSPHATE]	non-polymer		797.3	2	Chemie (PUA)
3		water	water		18.0	137	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	1594.7
All*	Total formula weight	29011.3

*Water molecules are not included.