Human Gene PIK3CB (ENST00000544716.5) from GENCODE V44
  Description: Homo sapiens phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta (PIK3CB), transcript variant 2, mRNA. (from RefSeq NM_001256045)
RefSeq Summary (NM_006219): This gene encodes an isoform of the catalytic subunit of phosphoinositide 3-kinase (PI3K). These kinases are important in signaling pathways involving receptors on the outer membrane of eukaryotic cells and are named for their catalytic subunit. The encoded protein is the catalytic subunit for PI3Kbeta (PI3KB). PI3KB has been shown to be part of the activation pathway in neutrophils which have bound immune complexes at sites of injury or infection. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2011].
Gencode Transcript: ENST00000544716.5
Gencode Gene: ENSG00000051382.9
Transcript (Including UTRs)
   Position: hg38 chr3:138,654,022-138,714,486 Size: 60,465 Total Exon Count: 15 Strand: -
Coding Region
   Position: hg38 chr3:138,655,389-138,699,014 Size: 43,626 Coding Exon Count: 12 

Page IndexSequence and LinksUniProtKB CommentsPrimersMalaCardsCTD
RNA-Seq ExpressionMicroarray ExpressionRNA StructureProtein StructureOther SpeciesGO Annotations
mRNA DescriptionsPathwaysOther NamesMethods
Data last updated at UCSC: 2023-08-18 00:09:47

-  Sequence and Links to Tools and Databases
 
Genomic Sequence (chr3:138,654,022-138,714,486)mRNA (may differ from genome)Protein (521 aa)
Gene SorterGenome BrowserOther Species FASTAGene interactionsTable SchemaAlphaFold
BioGPSEnsemblEntrez GeneExonPrimerGencodeGeneCards
HGNCLynxMalacardsMGIOMIMPubMed
UniProtKBWikipediaBioGrid CRISPR DB

-  Comments and Description Text from UniProtKB
  ID: Q68DL0_HUMAN
DESCRIPTION: SubName: Full=Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform; SubName: Full=Putative uncharacterized protein DKFZp779K1237;
SIMILARITY: Contains 1 PI3K/PI4K domain.
SIMILARITY: Contains 1 PIK helical domain.

-  Primer design for this transcript
 

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Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  MalaCards Disease Associations
  MalaCards Gene Search: PIK3CB
Diseases sorted by gene-association score: breast cancer (3)

-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene
  • C569670 1-(4-((2-(2-aminopyrimidin-5-yl)-7-methyl-4-morpholinothieno(3,2-d)pyrimidin-6-yl)methyl)piperazin-1-yl)-2-hydroxypropan-1-one
  • C532162 2-(1H-indazol-4-yl)-6-(4-methanesulfonylpiperazin-1-ylmethyl)-4-morpholin-4-ylthieno(3,2-d)pyrimidine
  • C085911 2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one
  • C504718 TGX 221
  • D013749 Tetrachlorodibenzodioxin
  • C028474 1,4-bis(2-(3,5-dichloropyridyloxy))benzene
  • C023514 2,6-dinitrotoluene
  • C027576 4-hydroxy-2-nonenal
  • D015123 7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide
  • D017638 Asbestos, Crocidolite
          more ... click here to view the complete list

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 13.97 RPKM in Brain - Cerebellar Hemisphere
Total median expression: 328.23 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
  Press "+" in the title bar above to open this section.

-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -55.60248-0.224 Picture PostScript Text
3' UTR -315.701367-0.231 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR016024 - ARM-type_fold
IPR011009 - Kinase-like_dom
IPR000403 - PI3/4_kinase_cat_dom
IPR018936 - PI3/4_kinase_CS
IPR015433 - PI_Kinase
IPR001263 - PInositide-3_kin_accessory_dom

Pfam Domains:
PF00454 - Phosphatidylinositol 3- and 4-kinase
PF00613 - Phosphoinositide 3-kinase family, accessory domain (PIK domain)

ModBase Predicted Comparative 3D Structure on Q68DL0
FrontTopSide
The pictures above may be empty if there is no ModBase structure for the protein. The ModBase structure frequently covers just a fragment of the protein. You may be asked to log onto ModBase the first time you click on the pictures. It is simplest after logging in to just click on the picture again to get to the specific info on that model.

-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologNo orthologNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD    
Protein SequenceProtein Sequence    
AlignmentAlignment    

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0016301 kinase activity
GO:0016740 transferase activity
GO:0035004 phosphatidylinositol 3-kinase activity

Biological Process:
GO:0014065 phosphatidylinositol 3-kinase signaling
GO:0016310 phosphorylation
GO:0046854 phosphatidylinositol phosphorylation
GO:0048015 phosphatidylinositol-mediated signaling

Cellular Component:
GO:0005622 intracellular


-  Descriptions from all associated GenBank mRNAs
  BC003393 - Homo sapiens, clone IMAGE:3447173, mRNA, partial cds.
CR749357 - Homo sapiens mRNA; cDNA DKFZp779K1237 (from clone DKFZp779K1237).
AK293754 - Homo sapiens cDNA FLJ57102 complete cds, highly similar to Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta isoform (EC 2.7.1.153).
AK302937 - Homo sapiens cDNA FLJ51708 complete cds, highly similar to Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta isoform (EC 2.7.1.153).
BC114432 - Homo sapiens phosphoinositide-3-kinase, catalytic, beta polypeptide, mRNA (cDNA clone MGC:133043 IMAGE:40008544), complete cds.
LF384587 - JP 2014500723-A/192090: Polycomb-Associated Non-Coding RNAs.
MA620164 - JP 2018138019-A/192090: Polycomb-Associated Non-Coding RNAs.
S67334 - phosphatidylinositol 3-kinase p110 beta isoform=110 kda catalytic subunit [human, mRNA Partial, 3213 nt].
KJ891808 - Synthetic construct Homo sapiens clone ccsbBroadEn_01202 PIK3CB gene, encodes complete protein.
AB384841 - Synthetic construct DNA, clone: pF1KB3705, Homo sapiens PIK3CB gene for phosphoinositide-3-kinase, catalytic, beta polypeptide, complete cds, without stop codon, in Flexi system.
BC035432 - Homo sapiens cDNA clone IMAGE:4152092.
BC033948 - Homo sapiens cDNA clone IMAGE:5285846.
BC045790 - Homo sapiens cDNA clone IMAGE:4796653.
BC022049 - Homo sapiens phosphoinositide-3-kinase, catalytic, beta polypeptide, mRNA (cDNA clone IMAGE:4291567), partial cds.
LF378270 - JP 2014500723-A/185773: Polycomb-Associated Non-Coding RNAs.
MA613847 - JP 2018138019-A/185773: Polycomb-Associated Non-Coding RNAs.
LF378275 - JP 2014500723-A/185778: Polycomb-Associated Non-Coding RNAs.
MA613852 - JP 2018138019-A/185778: Polycomb-Associated Non-Coding RNAs.
LF378279 - JP 2014500723-A/185782: Polycomb-Associated Non-Coding RNAs.
MA613856 - JP 2018138019-A/185782: Polycomb-Associated Non-Coding RNAs.

-  Biochemical and Signaling Pathways
  KEGG - Kyoto Encyclopedia of Genes and Genomes
hsa00562 - Inositol phosphate metabolism
hsa04012 - ErbB signaling pathway
hsa04062 - Chemokine signaling pathway
hsa04070 - Phosphatidylinositol signaling system
hsa04150 - mTOR signaling pathway
hsa04210 - Apoptosis
hsa04370 - VEGF signaling pathway
hsa04510 - Focal adhesion
hsa04620 - Toll-like receptor signaling pathway
hsa04630 - Jak-STAT signaling pathway
hsa04650 - Natural killer cell mediated cytotoxicity
hsa04660 - T cell receptor signaling pathway
hsa04662 - B cell receptor signaling pathway
hsa04664 - Fc epsilon RI signaling pathway
hsa04666 - Fc gamma R-mediated phagocytosis
hsa04670 - Leukocyte transendothelial migration
hsa04722 - Neurotrophin signaling pathway
hsa04810 - Regulation of actin cytoskeleton
hsa04910 - Insulin signaling pathway
hsa04914 - Progesterone-mediated oocyte maturation
hsa04930 - Type II diabetes mellitus
hsa04960 - Aldosterone-regulated sodium reabsorption
hsa05100 - Bacterial invasion of epithelial cells
hsa05142 - Chagas disease
hsa05200 - Pathways in cancer
hsa05210 - Colorectal cancer
hsa05211 - Renal cell carcinoma
hsa05212 - Pancreatic cancer
hsa05213 - Endometrial cancer
hsa05214 - Glioma
hsa05215 - Prostate cancer
hsa05218 - Melanoma
hsa05220 - Chronic myeloid leukemia
hsa05221 - Acute myeloid leukemia
hsa05222 - Small cell lung cancer
hsa05223 - Non-small cell lung cancer

-  Other Names for This Gene
  Alternate Gene Symbols: DKFZp779K1237, ENST00000544716.1, ENST00000544716.2, ENST00000544716.3, ENST00000544716.4, NM_001256045, Q68DL0, Q68DL0_HUMAN, uc011bmo.1, uc011bmo.2, uc011bmo.3, uc011bmo.4
UCSC ID: ENST00000544716.5
RefSeq Accession: NM_006219
Protein: Q68DL0

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.