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2IHP

Yeast inorganic pyrophosphatase with magnesium and phosphate

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 MG A 287
ChainResidue
AASP115
AASP120
AASP152
AHOH291
AHOH295
AHOH296

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 288
ChainResidue
AHOH294
AHOH297
AHOH298
AASP120
AHOH292
AHOH293

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 287
ChainResidue
BASP115
BASP120
BASP152
BHOH291
BHOH292
BHOH299

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 288
ChainResidue
BASP120
BHOH291
BHOH293
BHOH294
BHOH295
BHOH300

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG B 289
ChainResidue
BPO4290
BHOH420
BHOH666
BHOH667
BHOH668

site_idAC6
Number of Residues12
DetailsBINDING SITE FOR RESIDUE PO4 B 290
ChainResidue
BLYS56
BARG78
BASP147
BTYR192
BLYS193
BMG289
BHOH299
BHOH300
BHOH330
BHOH420
BHOH666
BHOH668

site_idAC7
Number of Residues7
DetailsBINDING SITE FOR RESIDUE PO4 A 289
ChainResidue
ALYS73
AARG78
ALYS198
BTHR72
BLYS73
BLYS74
BHOH360

site_idAC8
Number of Residues10
DetailsBINDING SITE FOR RESIDUE MES A 290
ChainResidue
ATHR60
ALYS61
AGLU62
AASP71
ATHR72
AHOH375
AHOH419
AHOH504
BLYS74
BLYS76

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
DetailsAnnotated By Reference To The Literature 1wgi
ChainResidueDetails
AASP117

site_idCSA2
Number of Residues1
DetailsAnnotated By Reference To The Literature 1wgi
ChainResidueDetails
BASP117

240291

PDB entries from 2025-08-13

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