1i6t Summary



The structure was published by Samygina, V.R., Popov, A.N., Rodina, E.V., et al., Kurilova, S.A., Nazarova, T.I., and Avaeva, S.M., in 2001 in a paper entitled "The structures of Escherichia coli inorganic pyrophosphatase complexed with Ca(2+) or CaPP(i) at atomic resolution and their mechanistic implications." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.2 Å and deposited in 2001.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of INORGANIC PYROPHOSPHATASE. This molecule has the UniProt identifier P0A7A9 (IPYR_ECOLI)search. The sample contained 175 residues which is 99% of the natural sequence. Out of 175 residues 175 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms homohexamers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):

Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A INORGANIC PYROPHOSPHATASE P0A7A9 (2-176) (IPYR_ECOLI)search Escherichia coli K-12search 99% 175 100%

This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P0A7A9 (2 - 176) INORGANIC PYROPHOSPHATASE Escherichia coli

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P0A7A9) Inorganic pyrophosphatasesearch Inorganic Pyrophosphatasesearch PF00719: Inorganic pyrophosphatasesearch

Chain ID Cellular component (GO) Molecular function (GO) Biological process (GO)
A (P0A7A9) cytoplasmsearch cytosolsearch membranesearch magnesium ion bindingsearch inorganic diphosphatase activitysearch zinc ion bindingsearch protein bindingsearch triphosphatase activitysearch metal ion bindingsearch hydrolase activitysearch phosphate-containing compound metabolic processsearch

Chain InterPro annotation
A Inorganic pyrophosphatasesearch