2KNT

THE 1.2 ANGSTROM STRUCTURE OF KUNITZ TYPE DOMAIN C5

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	COLLAGEN	polymer	58	6639.5	1	UniProt (P12111) Pfam (PF00014) In PDB	Homo sapiens (human)
2	A	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
3		water	water		18.0	50	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	6639.5
Non-Polymers*	Number of molecules	1
	Total formula weight	95.0
All*	Total formula weight	6734.5

*Water molecules are not included.