3AUH

A simplified BPTI variant with poly Arg amino acid tag (C3R) at the C-terminus

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, C, E, G)	Bovine pancreatic trypsin inhibitor	polymer	63	6572.5	4		Bos taurus (bovine)	BPTI
2	E, F, G, H, I (A, C, E, G)	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
3	J, K, L, M (A, C, E, G)	water	water		18.0	452	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	26290.0
Non-Polymers*	Number of molecules	5
	Total formula weight	480.3
All*	Total formula weight	26770.3

*Water molecules are not included.