9RNT

RIBONUCLEASE T1 WITH FREE RECOGNITION AND CATALYTIC SITE: CRYSTAL STRUCTURE ANALYSIS AT 1.5 ANGSTROMS RESOLUTION

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RIBONUCLEASE T1	polymer	104	11094.7	1	UniProt (P00651) Pfam (PF00545) In PDB	Aspergillus oryzae
2	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
3		water	water		18.0	121	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	11094.7
Non-Polymers*	Number of molecules	1
	Total formula weight	40.1
All*	Total formula weight	11134.8

*Water molecules are not included.