5JB5

A simplified BPTI variant containing 22 alanines out of 58 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	Pancreatic trypsin inhibitor	polymer	58	5756.5	3	UniProt (P00974) Pfam (PF00014) In PDB	Bos taurus (Bovine)	Aprotinin,Basic protease inhibitor,BPTI
2	A, B, C	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
3		water	water		18.0	283	Chemie (HOH)

Sequence modifications

A, B, C: 1 - 58 (UniProt: P00974)

PDB	External Database	Details
Ala 3	Asp 38	variant
Ala 11	Thr 46	variant
Gly 14	Cys 49	engineered mutation
Ala 15	Lys 50	variant
Ala 17	Arg 52	variant
Ala 26	Lys 61	variant
Ala 29	Leu 64	variant
Ala 30	Cys 65	variant
Ala 32	Thr 67	variant
Val 38	Cys 73	engineered mutation
Ala 39	Arg 74	variant
Ala 46	Lys 81	variant
Ala 49	Glu 84	variant
Ala 51	Cys 86	variant
Leu 52	Met 87	engineered mutation
Ala 53	Arg 88	variant
Ala 54	Thr 89	variant
Ala 56	Gly 91	variant
Ala 57	Gly 92	variant

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	17269.5
Non-Polymers*	Number of molecules	4
	Total formula weight	384.3
All*	Total formula weight	17653.7

*Water molecules are not included.