2ZPR

Crystal structure of anionic trypsin isoform 2 from chum salmon

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Anionic trypsin	polymer	222	23748.6	2	UniProt (Q8AV11) Pfam (PF00089) UniProt (by SIFTS) (B3Y8K5)	Oncorhynchus keta (Chum salmon)
2	C, E (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3	D, F (A, B)	BENZAMIDINE	non-polymer		120.2	2	Chemie (BEN)
4	G, H (A, B)	water	water		18.0	227	Chemie (HOH)

Sequence modifications

A, B: 1 - 222 (UniProt: Q8AV11)

PDB	External Database	Details
Ala 47	Glu 47	SEE REMARK 999
Gly 131	Lys 131	SEE REMARK 999
Asp 132	Asn 132	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	47497.3
Non-Polymers*	Number of molecules	4
	Total formula weight	320.5
All*	Total formula weight	47817.8

*Water molecules are not included.