1M38

Structure of Inorganic 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	INORGANIC PYROPHOSPHATASE	polymer	287	32340.5	2	UniProt (P00817) Pfam (PF00719) In PDB	Saccharomyces cerevisiae (baker's yeast)	Ipp1p, Pyrophosphate phospho-hydrolase, PPase
2	A, B	COBALT (II) ION	non-polymer		58.9	6	Chemie (CO)
3	A, B	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
4		water	water		18.0	666	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	64681.0
Non-Polymers*	Number of molecules	8
	Total formula weight	543.5
All*	Total formula weight	65224.6

*Water molecules are not included.