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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
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
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
DetailsACT_SITE: Proton donor => ECO:0000269|PubMed:1322842
ChainResidueDetails
AILE90
BILE90

site_idSWS_FT_FI2
Number of Residues8
DetailsBINDING:
ChainResidueDetails
APHE79
AASN116
AVAL121
ATRP153
BPHE79
BASN116
BVAL121
BTRP153

site_idSWS_FT_FI3
Number of Residues2
DetailsMOD_RES: Phosphothreonine => ECO:0007744|PubMed:18407956
ChainResidueDetails
ALEU65
BLEU65

site_idSWS_FT_FI4
Number of Residues2
DetailsMOD_RES: Phosphothreonine => ECO:0007744|PubMed:15665377, ECO:0007744|PubMed:17330950
ChainResidueDetails
APRO251
BPRO251

site_idSWS_FT_FI5
Number of Residues2
DetailsMOD_RES: Phosphoserine => ECO:0007744|PubMed:18407956, ECO:0007744|PubMed:19779198
ChainResidueDetails
ALEU266
BLEU266

site_idSWS_FT_FI6
Number of Residues2
DetailsMOD_RES: Phosphoserine => ECO:0007744|PubMed:15665377
ChainResidueDetails
AVAL286
BVAL286

site_idSWS_FT_FI7
Number of Residues6
DetailsCROSSLNK: Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) => ECO:0007744|PubMed:22106047
ChainResidueDetails
AGLY239
ATRP279
BGLY239
BTRP279

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 2025-07-02

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