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1WGI

STRUCTURE OF INORGANIC PYROPHOSPHATASE

Functional Information from GO Data
ChainGOidnamespacecontents
A0000287molecular_functionmagnesium ion binding
A0004427molecular_functioninorganic diphosphate phosphatase activity
A0005515molecular_functionprotein binding
A0005634cellular_componentnucleus
A0005737cellular_componentcytoplasm
A0005739cellular_componentmitochondrion
A0006796biological_processphosphate-containing compound metabolic process
A0016787molecular_functionhydrolase activity
A0046872molecular_functionmetal ion binding
B0000287molecular_functionmagnesium ion binding
B0004427molecular_functioninorganic diphosphate phosphatase activity
B0005515molecular_functionprotein binding
B0005634cellular_componentnucleus
B0005737cellular_componentcytoplasm
B0005739cellular_componentmitochondrion
B0006796biological_processphosphate-containing compound metabolic process
B0016787molecular_functionhydrolase activity
B0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN A 287
ChainResidue
AASP115
AASP120
AASP152
AHOH289
AHOH290
AHOH291

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN A 288
ChainResidue
AASP120
AHOH292
AHOH293
AHOH294
AHOH295
AHOH296

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN B 287
ChainResidue
BASP115
BASP120
BASP152
BHOH289
BHOH290
BHOH291

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN B 288
ChainResidue
BASP120
BHOH292
BHOH293
BHOH294
BHOH295
BHOH296

site_idASA
Number of Residues14
DetailsACTIVE SITE A.
ChainResidue
AGLU48
AASP147
AASP152
ALYS154
ATYR192
ALYS193
ALYS56
AGLU58
AARG78
ATYR89
ATYR93
AASP115
AASP117
AASP120

site_idASB
Number of Residues14
DetailsACTIVE SITE B.
ChainResidue
BGLU48
BLYS56
BGLU58
BARG78
BTYR89
BTYR93
BASP115
BASP117
BASP120
BASP147
BASP152
BLYS154
BTYR192
BLYS193

Functional Information from PROSITE/UniProt
site_idPS00387
Number of Residues7
DetailsPPASE Inorganic pyrophosphatase signature. DNDPIDV
ChainResidueDetails
AASP115-VAL121

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton donor","evidences":[{"source":"PubMed","id":"1322842","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues8
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"18407956","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"15665377","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"17330950","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"18407956","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"19779198","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues6
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)","evidences":[{"source":"PubMed","id":"22106047","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues1
Detailsa catalytic site defined by CSA, PubMed 14744152, 11722562, 15751976, 15533045
ChainResidueDetails
AASP117

site_idCSA2
Number of Residues1
Detailsa catalytic site defined by CSA, PubMed 14744152, 11722562, 15751976, 15533045
ChainResidueDetails
BASP117

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PDB entries from 2025-12-24

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