5JB4

A simplified BPTI variant containing 21 alanines out 58 of residues

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 (A, B, C)	Pancreatic trypsin inhibitor	polymer	58	5842.6	3	UniProt (P00974) Pfam (PF00014)	Bos taurus (Bovine)	Aprotinin,Basic protease inhibitor,BPTI
2	D, E, F (A, B, C)	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3	G, H, I (A, B, C)	water	water		18.0	271	Chemie (HOH)

Sequence modifications

A, B, C: 1001 - 1058 (UniProt: P00974)

PDB	External Database	Details
Ala 1003	Asp 38	variant
Ala 1011	Thr 46	variant
Gly 1014	Cys 49	engineered mutation
Ala 1015	Lys 50	variant
Ala 1017	Arg 52	variant
Ala 1026	Lys 61	variant
Ala 1029	Leu 64	variant
Ala 1030	Cys 65	variant
Ala 1032	Thr 67	variant
Val 1038	Cys 73	engineered mutation
Ala 1046	Lys 81	variant
Ala 1049	Glu 84	variant
Ala 1051	Cys 86	variant
Leu 1052	Met 87	engineered mutation
Ala 1053	Arg 88	variant
Ala 1054	Thr 89	variant
Ala 1056	Gly 91	variant
Ala 1057	Gly 92	variant

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	17527.8
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	17816.0

*Water molecules are not included.