2PTN

ON THE DISORDERED ACTIVATION DOMAIN IN TRYPSINOGEN. CHEMICAL LABELLING AND LOW-TEMPERATURE CRYSTALLOGRAPHY

Replaces:  1PTN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	TRYPSIN	polymer	223	23324.3	1	UniProt (P00760) Pfam (PF00089) In PDB	Bos taurus (cattle)
2	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
3		water	water		18.0	82	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	23324.3
Non-Polymers*	Number of molecules	1
	Total formula weight	40.1
All*	Total formula weight	23364.4

*Water molecules are not included.