4Z72

Crystal structure of inorganic pyrophosphatase from Mycobacterium tuberculosis in complex with two phosphate ions

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Inorganic pyrophosphatase	polymer	171	19454.9	1	UniProt (P9WI55) Pfam (PF00719) In PDB	Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)	Pyrophosphate phospho-hydrolase,PPase
2	A	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
3	A	CALCIUM ION	non-polymer		40.1	3	Chemie (CA)
4		water	water		18.0	30	Chemie (HOH)

Sequence modifications

A: 1 - 162 (UniProt: P9WI55)

PDB	External Database	Details
Met -8	-	initiating methionine
Ala -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	19454.9
Non-Polymers*	Number of molecules	5
	Total formula weight	310.2
All*	Total formula weight	19765.0

*Water molecules are not included.