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PIP4P1
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  • PIP4P1
PROTEIN SUMMARY SECTION OVERVIEW GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

PIP4P1
Synonyms C14orf9, MGC26684, TMEM55B
Gene descriptioni

Full gene name according to HGNC.

Phosphatidylinositol-4,5-bisphosphate 4-phosphatase 1
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Enzymes
Metabolic proteins
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane, Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 14
Cytoband q11.2
Chromosome location (bp) 20457681 - 20461465
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

4
Ensembl ENSG00000165782 (version 109)
Entrez gene 90809
HGNC HGNC:19299
UniProt Q86T03 (UniProt - Evidence at protein level)
neXtProt NX_Q86T03
GeneCards PIP4P1
Antibodypedia PIP4P1 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Catalyzes the hydrolysis of phosphatidylinositol-4,5-bisphosphate (PtdIns-4,5-P2) to phosphatidylinositol-4-phosphate (PtdIns-4-P) 1. Does not hydrolyze phosphatidylinositol 3,4,5-trisphosphate, phosphatidylinositol 3,4-bisphosphate, inositol 3,5-bisphosphate, inositol 3,4-bisphosphate, phosphatidylinositol 5-monophosphate, phosphatidylinositol 4-monophosphate and phosphatidylinositol 3-monophosphate 2. Regulates lysosomal positioning by recruiting JIP4 to lysosomal membranes, thus inducing retrograde transport of lysosomes along microtubules 3. Contributes to assembly of the V-ATPase complex in lipid rafts of the lysosomal membrane and to subsequent amino acid-dependent activation of mTORC1 4. May play a role in the regulation of cellular cholesterol metabolism 5.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Hydrolase
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Lipid metabolism
Gene summary (Entrez)i

Useful information about the gene from Entrez

TMEM55B catalyzes the degradation of phosphatidylinositol 4,5-bisphosphate (PtdIns-4,5-P2) by removing the 4-phosphate (Ungewickell et al., 2005).[supplied by OMIM, Mar 2008]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The ENSP identifier links to the Ensembl website protein summary, while the ENST identifier links to the Ensembl website transcript summary for the selected splice variant. The data in the UniProt column can be expanded to show links to all matching UniProt identifiers for this protein.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The Gene Ontology terms assigned to this protein are listed if expanding the Gene ontology column. The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide (according to a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius) and the number of predicted transmembrane region(s) (according to MDM) are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
PIP4P1-201
ENSP00000250489
ENST00000250489
Q86T03
[Direct mapping] Type 1 phosphatidylinositol 4,5-bisphosphate 4-phosphatase
Show all
Enzymes
   ENZYME proteins
   Hydrolases
Metabolic proteins
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   2TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0005654 [nucleoplasm]
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0005886 [plasma membrane]
GO:0006629 [lipid metabolic process]
GO:0006644 [phospholipid metabolic process]
GO:0006991 [response to sterol depletion]
GO:0008203 [cholesterol metabolic process]
GO:0016020 [membrane]
GO:0016787 [hydrolase activity]
GO:0030670 [phagocytic vesicle membrane]
GO:0031410 [cytoplasmic vesicle]
GO:0031902 [late endosome membrane]
GO:0032418 [lysosome localization]
GO:0034597 [phosphatidylinositol-4,5-bisphosphate 4-phosphatase activity]
GO:0046856 [phosphatidylinositol dephosphorylation]
GO:0070070 [proton-transporting V-type ATPase complex assembly]
GO:1901796 [regulation of signal transduction by p53 class mediator]
GO:1904263 [positive regulation of TORC1 signaling]
Show all
277 aa
29.5 kDa
No 2
PIP4P1-202
ENSP00000381102
ENST00000398020
Q86T03
[Direct mapping] Type 1 phosphatidylinositol 4,5-bisphosphate 4-phosphatase
Show all
Enzymes
   ENZYME proteins
   Hydrolases
Metabolic proteins
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   2TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005515 [protein binding]
GO:0005654 [nucleoplasm]
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0005886 [plasma membrane]
GO:0006629 [lipid metabolic process]
GO:0006644 [phospholipid metabolic process]
GO:0006991 [response to sterol depletion]
GO:0008203 [cholesterol metabolic process]
GO:0016020 [membrane]
GO:0016787 [hydrolase activity]
GO:0030670 [phagocytic vesicle membrane]
GO:0031410 [cytoplasmic vesicle]
GO:0031902 [late endosome membrane]
GO:0032418 [lysosome localization]
GO:0034597 [phosphatidylinositol-4,5-bisphosphate 4-phosphatase activity]
GO:0046856 [phosphatidylinositol dephosphorylation]
GO:0070070 [proton-transporting V-type ATPase complex assembly]
GO:1901796 [regulation of signal transduction by p53 class mediator]
GO:1904263 [positive regulation of TORC1 signaling]
Show all
284 aa
30.2 kDa
No 2
PIP4P1-203
ENSP00000451014
ENST00000553460
H0YJ90
[Direct mapping] Phosphatidylinositol-4,5-bisphosphate 4-phosphatase
Show all
Metabolic proteins
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   2TM proteins predicted by MDM
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0010008 [endosome membrane]
GO:0016020 [membrane]
GO:0016787 [hydrolase activity]
GO:0030670 [phagocytic vesicle membrane]
GO:0031902 [late endosome membrane]
GO:0034597 [phosphatidylinositol-4,5-bisphosphate 4-phosphatase activity]
GO:0046856 [phosphatidylinositol dephosphorylation]
Show all
112 aa
12.5 kDa
No 2
PIP4P1-206
ENSP00000452508
ENST00000556093
G3V5T5
[Direct mapping] Phosphatidylinositol-4,5-bisphosphate 4-phosphatase
Show all
Metabolic proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005764 [lysosome]
GO:0005765 [lysosomal membrane]
GO:0005768 [endosome]
GO:0010008 [endosome membrane]
GO:0016020 [membrane]
GO:0016787 [hydrolase activity]
GO:0030670 [phagocytic vesicle membrane]
GO:0031902 [late endosome membrane]
GO:0034597 [phosphatidylinositol-4,5-bisphosphate 4-phosphatase activity]
GO:0046856 [phosphatidylinositol dephosphorylation]
Show all
43 aa
4.7 kDa
No 0

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