Basic information

Full name
ataxin 2
Ensembl
ENSG00000204842.18
Summary
This gene belongs to a group of genes that is associated with microsatellite-expansion diseases, a class of neurological and neuromuscular disorders caused by expansion of short stretches of repetitive DNA. The protein encoded by this gene has two globular domains near the N-terminus, one of which contains a clathrin-mediated trans-Golgi signal and an endoplasmic reticulum exit signal. The encoded cytoplasmic protein localizes to the endoplasmic reticulum and plasma membrane, is involved in endocytosis, and modulates mTOR signals, modifying ribosomal translation and mitochondrial function. The N-terminal region of the protein contains a polyglutamine tract of 14-31 residues that can be expanded in the pathogenic state to 32-200 residues. Intermediate length expansions of this tract increase susceptibility to amyotrophic lateral sclerosis, while long expansions of this tract result in spinocerebellar ataxia-2, an autosomal-dominantly inherited, neurodegenerative disorder. Genome-wide association studies indicate that loss-of-function mutations in this gene may be associated with susceptibility to type I diabetes, obesity and hypertension. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]

Protein product

  • ENST00000550104.5 Primary ENSP00000446576.2 (61 phosphosites)
  • ENST00000616825.4
  • ENST00000535949.5
  • ENST00000647305.1
  • ENST00000644883.1
  • ENST00000673449.1
  • ENST00000673557.1
  • ENST00000643669.2
  • ENST00000673436.1
  • ENST00000608853.5
  • ENST00000672613.1
  • ENST00000389153.10
  • ENST00000542287.6
  • ENST00000673283.1
Phosphosites on the primary protein product
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Tumor and normal comparison

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Signed p-values
Data type
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
RNA-5.8e-8--2.3e-22--0.025-4.5e-60.69--0.65-
protein0.003--2.8e-230.13-0.0190.59.9e-19-0.0330.56

* P-values are from Wilcoxon rank sum test and can be clicked to show the box plots. Positive values mean higher abundance in tumor. BRCA and GBM do not have normal samples.

mRNA expression at gene level
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC4.555.566.577.588.599.51010.51111.5log2(RSEM+1)tumornormal
Protein expression
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC1617181920212223242526log2(MS1 intensity)tumornormal

* Mild outlier: filled circle; Extreme outlier: empty circle.

Phenotype and mutation association

Manhattan plot summarizing associations of phenotypes and mutations across all cohorts and omics data types

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC024681012141618202224260-2-4-6-8-10-12-14-16-18-20-22-24-26Pan-cancer051015202530354045500-5-10-15-20-25-30-35-40-45-50proteinRNASCNVclinicalpathwaycell typegenomicmutation-log10 of P-value

* Data points of significant associations above and below the dotted lines can be hovered to show the phenotype.

Associations of the protein abundance of ATXN2 with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
HALLMARK_PANCREAS_BETA_CELLS2.8e-40.0280.0190.460.115.8e-31.3e-3-0.85-0.76-0.0630.31
Tumor Purity (WGS)4.9e-3-0.2-9.3e-6-0.680.450.072-0.42-0.22
KINASE-PSP_JNK1/MAPK86.2e-3---6.4e-4-----0.65
KINASE-PSP_CDK56.2e-3---0.45-0.870.018--0.120.1
BAP1 mutation6.8e-3-6.8e-3--------
xcell: NK cell0.0070.180.740.0470.710.1-0.410.0410.57-0.790.17
KEAP1 mutation7.8e-3-----0.0310.11---
STK11 mutation8.2e-3------8.2e-3---
HALLMARK_SPERMATOGENESIS8.5e-30.370.540.0892.7e-4-0.160.249.3e-4-0.54-0.4-0.88
PROGENy: PI3K0.015-0.150.0512.4e-30.890.54-0.690.660.440.0820.4
Showing 1 to 10 of 256 rows

* P-values could be from test for Spearman correlation, Wilcoxon rank sum test, Jonckheere-Terpstra trend test or Cox regression depending on the data type. P-values for individual cohorts can be clicked to show the data plots. The matrix icons in each row can be clicked to show a heatmap summary of associations across all cohorts and omics. The rows in the table can be expanded to show results from other omics.

Cis-association

Associations between omics data of ATXN2

BRCA0.410.150.28proteinmRNASCNVmethylationCCRCC0.33-0.170.26-0.130.20-0.20proteinmRNASCNVmethylationCOAD-0.020.240.24proteinmRNASCNVmethylationGBM0.24-0.020.17-0.200.19-0.00proteinmRNASCNVmethylationHNSCC0.18-0.240.170.130.31-0.08proteinmRNASCNVmethylationLSCC0.34-0.310.34-0.140.50-0.04proteinmRNASCNVmethylationLUAD0.60-0.160.50-0.100.56-0.23proteinmRNASCNVmethylationOV0.180.410.22proteinmRNASCNVmethylationPDAC0.260.030.26-0.180.48-0.23proteinmRNASCNVmethylationUCEC0.48-0.110.25-0.130.24-0.24proteinmRNASCNVmethylation

* The numbers are Spearman correlation coefficients and can be clicked to show the scatter plots. The color and size of the circles correlate with the coefficients.

Trans-association

Associations of the protein abundance of ATXN2 and the protein abundance of other genes

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Signed p-values
Gene
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
No matching records found

* P-values are from test for Spearman correlation. P-values for individual cohorts can be clicked to show the data plots. The matrix icons in each row can be clicked to show a heatmap summary of associations across all cohorts and omics. The rows in the table can be expanded to show results from other omics.

Gene set enrichment analysis

Submit genes and the common logarithm of the p-values of their association with to WebGestalt.