Basic information

Full name
plakophilin 4
Ensembl
ENSG00000144283.21
Summary
Armadillo-like proteins are characterized by a series of armadillo repeats, first defined in the Drosophila 'armadillo' gene product, that are typically 42 to 45 amino acids in length. These proteins can be divided into subfamilies based on their number of repeats, their overall sequence similarity, and the dispersion of the repeats throughout their sequences. Members of the p120(ctn)/plakophilin subfamily of Armadillo-like proteins, including CTNND1, CTNND2, PKP1, PKP2, PKP4, and ARVCF. PKP4 may be a component of desmosomal plaque and other adhesion plaques and is thought to be involved in regulating junctional plaque organization and cadherin function. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2015]

Protein product

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-0.8--9.7e-21---2.2e-58.4e-160.032-0.096-
protein-4.7e-8--4.6e-250.011--9.4e-11-0.18-1.1e-3-0.0814.0e-50.29

* 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
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC7.588.599.51010.51111.51212.51313.51414.5log2(RSEM+1)tumornormal
Protein expression
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC18192021222324252627log2(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

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC02468101214160-2-4-6-8-10-12-14-16Pan-cancer02468101214161820220-2-4-6-8-10-12-14-16-18-20-22proteinRNASCNVclinicalpathwaycell 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 PKP4 with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
Tumor Purity (WGS)7.9e-14-1.7e-5--0.495.0e-51.4e-60.022-0.034.8e-3
PROGENy: Androgen9.7e-91.4e-30.0110.950.0270.0650.414.6e-3-0.950.0694.2e-3
DISEASE-PSP_Alzheimer's_disease2.4e-8---2.2e-16------0.75
Tumor Purity (ABSOLUTE)2.4e-80.624.6e-50.092-0.576.2e-34.7e-50.0560.20.750.095
HALLMARK_PEROXISOME1.3e-72.4e-41.8e-6-0.0960.260.0150.640.017-0.610.0550.039
PROGENy: Estrogen3.6e-72.2e-160.820.580.619.7e-30.43-0.039-0.950.369.6e-6
HALLMARK_ESTROGEN_RESPONSE_EARLY1.1e-52.2e-160.550.81-0.470.190.691.7e-3-0.340.950.1
HALLMARK_PANCREAS_BETA_CELLS4.5e-50.161.4e-50.381.4e-40.16-0.520.830.720.480.66
HALLMARK_BILE_ACID_METABOLISM1.4e-47.8e-52.1e-6-0.180.0980.5-1.8e-31.3e-3-0.250.270.02
HALLMARK_FATTY_ACID_METABOLISM5.3e-40.0252.7e-6-0.022-0.380.0170.220.045-0.0840.030.26
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 PKP4

BRCA0.55-0.160.04proteinmRNASCNVmethylationCCRCC0.730.030.040.060.110.09proteinmRNASCNVmethylationCOAD0.560.050.17proteinmRNASCNVmethylationGBM0.78-0.300.19-0.140.160.20proteinmRNASCNVmethylationHNSCC0.740.040.420.240.650.32proteinmRNASCNVmethylationLSCC0.720.070.250.120.450.25proteinmRNASCNVmethylationLUAD0.610.010.140.050.470.07proteinmRNASCNVmethylationOV0.380.140.30proteinmRNASCNVmethylationPDAC0.43-0.060.05-0.070.18-0.01proteinmRNASCNVmethylationUCEC0.84-0.01-0.110.06-0.040.01proteinmRNASCNVmethylation

* 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 PKP4 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.