1SLV

RAT ANIONIC N143H, E151H TRYPSIN COMPLEXED TO A86H ECOTIN; COPPER-BOUND

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	ECOTIN	polymer	142	16187.6	1	UniProt (P23827) Pfam (PF03974) In PDB	Escherichia coli	TRYPSIN INHIBITOR
2	B	ANIONIC TRYPSIN	polymer	223	23847.9	1	UniProt (P00763) Pfam (PF00089) In PDB	Rattus norvegicus (Norway rat)
3	B	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
4	B	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
5	B	COPPER (II) ION	non-polymer		63.5	1	Chemie (CU)
6		water	water		18.0	66	Chemie (HOH)

Sequence modifications

A: 1 - 142 (UniProt: P23827)

PDB	External Database	Details
His 86	Ala 106	engineered mutation

B: 16 - 245 (UniProt: P00763)

PDB	External Database	Details
His 143	Asn 146	engineered mutation
His 151	Glu 154	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	40035.5
Non-Polymers*	Number of molecules	3
	Total formula weight	162.7
All*	Total formula weight	40198.2

*Water molecules are not included.