3MYW

The Bowman-Birk type inhibitor from mung bean in ternary complex with porcine trypsin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Trypsin	polymer	223	23463.5	2	UniProt (P00761) Pfam (PF00089) In PDB	Sus scrofa (pigs swine wild boar)
2	I	Bowman-Birk type trypsin inhibitor	polymer	72	7985.0	1	UniProt (P01062) Pfam (PF00228) In PDB	Vigna radiata var. radiata (golden gram green gram)
3	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	262	Chemie (HOH)

Sequence modifications

A, B: 16 - 245 (UniProt: P00761)

PDB	External Database	Details
Val 27	Ile 20	variant
Ala 171	Ser 159	SEE REMARK 999

I: 1 - 72 (UniProt: P01062)

PDB	External Database	Details
Lys 22	Ile 22	SEE REMARK 999
Gln 25	Glu 25	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	54912.0
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	54992.1

*Water molecules are not included.