1R5C

X-ray structure of the complex of Bovine seminal ribonuclease swapping dimer with d(CpA)

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, seminal	polymer	124	13632.6	2	UniProt (P00669) Pfam (PF00074) In PDB	Bos taurus (cattle)	Seminal RNase, S-RNase, Ribonuclease BS-1
2	A, B	2'-DEOXYCYTIDINE-2'-DEOXYADENOSINE-3',5'-MONOPHOSPHATE	non-polymer		540.4	2	Chemie (CPA)
3		water	water		18.0	91	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	27265.3
Non-Polymers*	Number of molecules	2
	Total formula weight	1080.8
All*	Total formula weight	28346.1

*Water molecules are not included.