1QEZ

SULFOLOBUS ACIDOCALDARIUS INORGANIC PYROPHOSPHATASE: AN ARCHAEL PYROPHOSPHATASE.

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, D, E...	PROTEIN (INORGANIC PYROPHOSPHATASE)	polymer	173	19402.9	6	UniProt (P50308) Pfam (PF00719) In PDB	Sulfolobus acidocaldarius	PPASE, S-PPASE
2	A, B, C, D, E...	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
3		water	water		18.0	75	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	116417.7
Non-Polymers*	Number of molecules	6
	Total formula weight	145.8
All*	Total formula weight	116563.5

*Water molecules are not included.