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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.
Assigned HPA protein class(es) for the encoded protein(s).
Cancer-related genes Metabolic proteins RAS pathway related 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.
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
1
Cytoband
p34.1
Chromosome location (bp)
46040140 - 46133036
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Binds to activated (phosphorylated) protein-tyrosine kinases through its SH2 domain and regulates their kinase activity. During insulin stimulation, it also binds to IRS-1....show less
Gene summary (Entrez)i
Useful information about the gene from Entrez
Phosphatidylinositol 3-kinase (PI3K) phosphorylates phosphatidylinositol and similar compounds, which then serve as second messengers in growth signaling pathways. PI3K is composed of a catalytic and a regulatory subunit. The protein encoded by this gene represents a regulatory subunit of PI3K. The encoded protein contains two SH2 domains through which it binds activated protein tyrosine kinases to regulate their activity. [provided by RefSeq, Jun 2016]...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.
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC RAS pathway related proteins Cancer-related genes Candidate cancer biomarkers Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0001784[phosphotyrosine residue binding] GO:0001934[positive regulation of protein phosphorylation] GO:0002042[cell migration involved in sprouting angiogenesis] GO:0005515[protein binding] GO:0005829[cytosol] GO:0005942[phosphatidylinositol 3-kinase complex] GO:0005943[phosphatidylinositol 3-kinase complex, class IA] GO:0006955[immune response] GO:0008286[insulin receptor signaling pathway] GO:0010628[positive regulation of gene expression] GO:0016303[1-phosphatidylinositol-3-kinase activity] GO:0030183[B cell differentiation] GO:0030217[T cell differentiation] GO:0030335[positive regulation of cell migration] GO:0036092[phosphatidylinositol-3-phosphate biosynthetic process] GO:0043491[protein kinase B signaling] GO:0043551[regulation of phosphatidylinositol 3-kinase activity] GO:0046854[phosphatidylinositol phosphate biosynthetic process] GO:0046935[1-phosphatidylinositol-3-kinase regulator activity] GO:2000811[negative regulation of anoikis]
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC RAS pathway related proteins Cancer-related genes Candidate cancer biomarkers Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001784[phosphotyrosine residue binding] GO:0001934[positive regulation of protein phosphorylation] GO:0002042[cell migration involved in sprouting angiogenesis] GO:0005515[protein binding] GO:0005829[cytosol] GO:0005942[phosphatidylinositol 3-kinase complex] GO:0005943[phosphatidylinositol 3-kinase complex, class IA] GO:0006955[immune response] GO:0008286[insulin receptor signaling pathway] GO:0010628[positive regulation of gene expression] GO:0016303[1-phosphatidylinositol-3-kinase activity] GO:0030183[B cell differentiation] GO:0030217[T cell differentiation] GO:0030335[positive regulation of cell migration] GO:0036092[phosphatidylinositol-3-phosphate biosynthetic process] GO:0043491[protein kinase B signaling] GO:0043551[regulation of phosphatidylinositol 3-kinase activity] GO:0046854[phosphatidylinositol phosphate biosynthetic process] GO:0046935[1-phosphatidylinositol-3-kinase regulator activity] GO:2000811[negative regulation of anoikis]
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC RAS pathway related proteins Cancer-related genes Candidate cancer biomarkers Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001784[phosphotyrosine residue binding] GO:0001934[positive regulation of protein phosphorylation] GO:0002042[cell migration involved in sprouting angiogenesis] GO:0005515[protein binding] GO:0005829[cytosol] GO:0005942[phosphatidylinositol 3-kinase complex] GO:0005943[phosphatidylinositol 3-kinase complex, class IA] GO:0006955[immune response] GO:0008286[insulin receptor signaling pathway] GO:0010628[positive regulation of gene expression] GO:0016303[1-phosphatidylinositol-3-kinase activity] GO:0030183[B cell differentiation] GO:0030217[T cell differentiation] GO:0030335[positive regulation of cell migration] GO:0036092[phosphatidylinositol-3-phosphate biosynthetic process] GO:0043491[protein kinase B signaling] GO:0043551[regulation of phosphatidylinositol 3-kinase activity] GO:0046854[phosphatidylinositol phosphate biosynthetic process] GO:0046935[1-phosphatidylinositol-3-kinase regulator activity] GO:2000811[negative regulation of anoikis]
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC RAS pathway related proteins Cancer-related genes Candidate cancer biomarkers Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001784[phosphotyrosine residue binding] GO:0001934[positive regulation of protein phosphorylation] GO:0002042[cell migration involved in sprouting angiogenesis] GO:0005515[protein binding] GO:0005829[cytosol] GO:0005942[phosphatidylinositol 3-kinase complex] GO:0005943[phosphatidylinositol 3-kinase complex, class IA] GO:0006955[immune response] GO:0008286[insulin receptor signaling pathway] GO:0010628[positive regulation of gene expression] GO:0016303[1-phosphatidylinositol-3-kinase activity] GO:0030183[B cell differentiation] GO:0030217[T cell differentiation] GO:0030335[positive regulation of cell migration] GO:0036092[phosphatidylinositol-3-phosphate biosynthetic process] GO:0043491[protein kinase B signaling] GO:0043551[regulation of phosphatidylinositol 3-kinase activity] GO:0046854[phosphatidylinositol phosphate biosynthetic process] GO:0046935[1-phosphatidylinositol-3-kinase regulator activity] GO:2000811[negative regulation of anoikis]
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC RAS pathway related proteins Protein evidence (Ezkurdia et al 2014)