1R5D

X-ray structure of bovine seminal ribonuclease swapping dimer from a new crystal form

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		water	water		18.0	63	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	27265.3
All*	Total formula weight	27265.3

*Water molecules are not included.