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Information on EC 3.1.3.64 - phosphatidylinositol-3-phosphatase

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EC Tree
     3 Hydrolases
         3.1 Acting on ester bonds
             3.1.3 Phosphoric-monoester hydrolases
                3.1.3.64 phosphatidylinositol-3-phosphatase
IUBMB Comments
This enzyme still works when the 2,3-bis(acyloxy)propyl group is removed, i.e., it hydrolyses Ins(1,3)P2 to Ins-1-P.
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This record set is specific for:
UNIPROT: Q9C0I1
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
ptdins3p, myotubularin, mtmr2, mtmr3, mtmr14, mtmr6, mtmr4, mtmr13, mtmr7, myotubularin-related protein, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
D-myo-inositol 1,3-bisphosphate 3-phosphohydrolase
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inositol 1,3-bisphosphate phosphatase
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inositol-1,3-bisphosphate 3-phosphatase
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inositol-polyphosphate 3-phosphatase
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phosphatase, phosphatidylinositol 3-
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phosphatidyl-3-phosphate 3-phosphohydrolase
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phosphoinositide 3-phosphatase
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PtdIns 3-phosphatase
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
hydrolysis of phosphoric ester
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PATHWAY SOURCE
PATHWAYS
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-, -, -
SYSTEMATIC NAME
IUBMB Comments
1-phosphatidyl-1D-myo-inositol-3-phosphate 3-phosphohydrolase
This enzyme still works when the 2,3-bis(acyloxy)propyl group is removed, i.e., it hydrolyses Ins(1,3)P2 to Ins-1-P.
CAS REGISTRY NUMBER
COMMENTARY hide
122653-77-4
formerly, EC 3.1.3.65
124248-47-1
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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
phosphatidylinositol 3,4-bisphosphate + H2O
phosphatidylinositol 4-phosphate + phosphate
show the reaction diagram
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-
?
phosphatidylinositol 3-phosphate + H2O
phosphatidylinositol + phosphate
show the reaction diagram
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?
additional information
?
-
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
7.4
assay at
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
37
assay at
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
adapter subunit 3-PAP of phosphatidylinositol 3-phosphate phosphatase
SwissProt
Manually annotated by BRENDA team
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
adapter subunit 3-PAP mRNA, 2 transcripts of 5.5 and 2.5 kb
Manually annotated by BRENDA team
adapter subunit 3-PAP mRNA, 2 transcripts of 5.5 and 2.5 kb
Manually annotated by BRENDA team
adapter subunit 3-PAP mRNA, highest abundance in liver, kidney, lung and placenta, 2 transcripts of 5.5 and 2.5 kb
Manually annotated by BRENDA team
adapter subunit 3-PAP mRNA, highest abundance in liver, kidney, lung and placenta, 2 transcripts of 5.5 and 2.5 kb
Manually annotated by BRENDA team
adapter subunit 3-PAP mRNA, highest abundance in liver, kidney, lung and placenta, 2 transcripts of 5.5 and 2.5 kb
Manually annotated by BRENDA team
adapter subunit 3-PAP mRNA, highest abundance in liver, kidney, lung and placenta, 2 transcripts of 5.5 and 2.5 kb
Manually annotated by BRENDA team
isolation of adapter subunit 3-PAP immunoprecipitates
Manually annotated by BRENDA team
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
MTMRC_HUMAN
747
0
86148
Swiss-Prot
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MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
86000
x * 86000 + x * ?, adapter subunit 3-PAP of phosphatidylinositol 3-phosphate phosphatase, forms a complex with a catalytic subunit of unknown MW, predicted from the amino acid sequence
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
cDNA encoding the adapter subunit 3-PAP of phosphatidylinositol 3-phosphate 3-phosphatase is cloned, sequenced and characterized, expression of 3-PAP in SF9 insect cells
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Nandurkar, H.H.; Caldwell, K.K.; Whisstock, J.C.; Layton, M.J.; Gaudet, E.A.; Norris, F.A.; Majerus, P.W.; Mitchell, C.A.
Characterization of an adapter subunit to a phosphatidylinositol (3)P 3-phosphatase: Identification of a myotubularin-related protein lacking catalytic activity
Proc. Natl. Acad. Sci. USA
98
9499-9504
2001
Homo sapiens (Q9C0I1), Homo sapiens
Manually annotated by BRENDA team