1IWD

Proposed Amino Acid Sequence and the 1.63 Angstrom X-ray Crystal Structure of a Plant Cysteine Protease Ervatamin B: Insight into the Structural Basis of its Stability and Substrate Specificity.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	ERVATAMIN B	polymer	215	23200.8	1	UniProt (P60994) Pfam (PF00112) In PDB	Tabernaemontana divaricata
2	A	THIOSULFATE	non-polymer		112.1	1	Chemie (THJ)
3		water	water		18.0	208	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	23200.8
Non-Polymers*	Number of molecules	1
	Total formula weight	112.1
All*	Total formula weight	23312.9

*Water molecules are not included.