1PSN

THE CRYSTAL STRUCTURE OF HUMAN PEPSIN AND ITS COMPLEX WITH PEPSTATIN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	PEPSIN 3A	polymer	326	34631.9	1	UniProt (P00790) Pfam (PF00026) UniProt (by SIFTS) (P0DJD7) In PDB	Homo sapiens (human)
2		water	water		18.0	136	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	34631.9
All*	Total formula weight	34631.9

*Water molecules are not included.