Basic information

Full name
potassium voltage-gated channel subfamily A member 2
Ensembl
ENSG00000177301.15
Summary
Potassium channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member contains six membrane-spanning domains with a shaker-type repeat in the fourth segment. It belongs to the delayed rectifier class, members of which allow nerve cells to efficiently repolarize following an action potential. The coding region of this gene is intronless, and the gene is clustered with genes KCNA3 and KCNA10 on chromosome 1. [provided by RefSeq, Jul 2008]
Annotation
Druggable target (Tier T2)

Protein product

  • ENST00000316361.10 Primary ENSP00000314520.4 (10 phosphosites)
  • ENST00000633222.1
  • ENST00000638616.1
  • ENST00000485317.6
  • ENST00000638532.1
  • ENST00000640956.1
  • ENST00000369770.7
  • ENST00000639233.1
  • ENST00000639048.1
  • ENST00000640774.1
  • ENST00000638477.1
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-6.8e-33-0.034---4.2e-10-4.9e-16-1.7e-19--5.2e-8-
protein-----------

* 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
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC012345678910111213log2(RSEM+1)tumornormal
Protein expression
GBM2121.52222.52323.52424.52525.5log2(MS1 intensity)tumor

* 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

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC024681012141618200-2-4-6-8-10-12-14-16-18-20Pan-cancer0246810121416182022242628300-2-4-6-8-10-12-14-16-18-20-22-24-26-28-30proteinRNASCNVclinicalpathwaycell 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 KCNA2 with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
DISEASE-PSP_Alzheimer's_disease2.2e-16---2.2e-16------
HALLMARK_KRAS_SIGNALING_DN7.5e-6---7.5e-6------
KINASE-PSP_CDK54.6e-4---4.6e-4------
HALLMARK_PANCREAS_BETA_CELLS4.8e-3---4.8e-3------
xcell: Eosinophil8.1e-3---8.1e-3------
HALLMARK_HEME_METABOLISM8.6e-3---8.6e-3------
PROGENy: Androgen0.013---0.013------
KINASE-PSP_P38A/MAPK140.021---0.021------
xcell: Common myeloid progenitor0.027---0.027------
HALLMARK_BILE_ACID_METABOLISM0.065---0.066------
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 KCNA2

BRCA-0.02proteinmRNASCNVmethylationCCRCC-0.19-0.180.09proteinmRNASCNVmethylationCOAD-0.06proteinmRNASCNVmethylationGBM0.220.01-0.080.04-0.06-0.10proteinmRNASCNVmethylationHNSCC0.12-0.000.10proteinmRNASCNVmethylationLSCC0.210.18-0.10proteinmRNASCNVmethylationLUAD0.040.03-0.00proteinmRNASCNVmethylationOV0.03proteinmRNASCNVmethylationPDAC-0.01-0.170.14proteinmRNASCNVmethylationUCEC-0.10-0.090.07proteinmRNASCNVmethylation

* 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 KCNA2 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.