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4QXD

Crystal structure of Inositol Polyphosphate 1-Phosphatase from Entamoeba histolytica

Replaces:  4J13
Functional Information from GO Data
ChainGOidnamespacecontents
A0000287molecular_functionmagnesium ion binding
A0004441molecular_functioninositol-1,4-bisphosphate 1-phosphatase activity
A0005737cellular_componentcytoplasm
A0008441molecular_function3'(2'),5'-bisphosphate nucleotidase activity
A0016787molecular_functionhydrolase activity
A0046872molecular_functionmetal ion binding
B0000287molecular_functionmagnesium ion binding
B0004441molecular_functioninositol-1,4-bisphosphate 1-phosphatase activity
B0005737cellular_componentcytoplasm
B0008441molecular_function3'(2'),5'-bisphosphate nucleotidase activity
B0016787molecular_functionhydrolase activity
B0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues12
DetailsBINDING SITE FOR RESIDUE PO4 A 301
ChainResidue
AGLU68
AHOH402
AHOH403
AHOH404
AASP106
ALEU108
AASP109
AGLY110
ATHR111
AMG302
AMG303
AMG304

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG A 302
ChainResidue
AGLU68
AASP106
ALEU108
APO4301

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG A 303
ChainResidue
AGLU68
APO4301
AHOH401

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 304
ChainResidue
AASP106
AASP109
AASP223
APO4301
AHOH402

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 301
ChainResidue
BGLU68
BASP106
BLEU108
BASP109
BPO4303
BHOH401

site_idAC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG B 302
ChainResidue
BASP106
BASP109
BASP223
BPO4303

site_idAC7
Number of Residues11
DetailsBINDING SITE FOR RESIDUE PO4 B 303
ChainResidue
BGLU68
BASP106
BLEU108
BASP109
BGLY110
BTHR111
BMG301
BMG302
BMG304
BHOH402
BHOH412

site_idAC8
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG B 304
ChainResidue
BGLU68
BPO4303
BHOH411
BHOH412

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues10
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"25372691","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4QXD","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"25372691","evidenceCode":"ECO:0000305"},{"source":"PDB","id":"4QXD","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P21327","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

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PDB entries from 2026-02-25

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