Basic information

Full name
complement C8 alpha chain
Ensembl
ENSG00000157131.11
Summary
C8 is a component of the complement system and contains three polypeptides, alpha, beta and gamma. This gene encodes the alpha subunit of C8. C8 participates in the formation of the membrane attack complex (MAC). The MAC assembles on bacterial membranes to form a pore, permitting disruption of bacterial membrane organization. Mutations in this gene cause complement C8 alpha-gamma deficiency. [provided by RefSeq, Nov 2008]

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-0.001--1.4e-8--6.8e-3-1.1e-90.33-0.46-
protein-1e-43--0.32-8.7e-8--1.4e-17-4.3e-25-9.4e-24-2.7e-71.6e-11-3.1e-8

* 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
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC0123456789log2(RSEM+1)tumornormal
Protein expression
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC23.52424.52525.52626.52727.52828.529log2(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-cancer05101520253035404550550-5-10-15-20-25-30-35-40-45-50-55proteinRNASCNVclinicalpathwaycell 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 C8A 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_EPITHELIAL_MESENCHYMAL_TRANSITION2.3e-561.8e-91.2e-41.3e-72.8e-81e-88.9e-61.7e-83.2e-61.1e-32.3e-8
HALLMARK_HYPOXIA9.6e-556.5e-70.0146.9e-98.8e-101.8e-71.5e-52.2e-162.1e-44.6e-47.4e-7
ESTIMATE: StromalScore4e-462.2e-161.1e-31.1e-52.7e-119.6e-41.6e-49.1e-51.3e-42.5e-32.4e-6
PROGENy: TGFb1.8e-456.1e-93.5e-48.0e-62.0e-41.1e-52.2e-62.2e-52.1e-67.2e-53.6e-7
HALLMARK_UV_RESPONSE_DN1.6e-412.2e-163.7e-42.3e-32.9e-44.9e-41.7e-62.5e-31.1e-63.8e-32.1e-7
HALLMARK_ANGIOGENESIS6.7e-412.2e-163.7e-32.2e-88.1e-63.5e-62.0e-61.1e-71.8e-6-0.0492.4e-4
HALLMARK_MYOGENESIS1.4e-393.5e-81.8e-43.5e-44.1e-51.8e-31.2e-80.0357.7e-68.8e-42.3e-9
HALLMARK_APICAL_JUNCTION4.1e-373.9e-81.2e-45.4e-32.8e-55.1e-53.4e-50.092.1e-77.2e-44.5e-8
HALLMARK_TGF_BETA_SIGNALING5.2e-372.2e-162.0e-40.0025.3e-60.0121.6e-41.3e-34e-70.0319.6e-5
HALLMARK_KRAS_SIGNALING_UP1.3e-367.3e-82.3e-41.0e-42.2e-165.0e-47.8e-41.4e-48.0e-50.875.0e-5
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* 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 C8A

BRCA0.13-0.140.20proteinmRNASCNVmethylationCCRCC0.06-0.110.06proteinmRNASCNVmethylationCOAD0.380.040.15proteinmRNASCNVmethylationGBM0.010.100.10proteinmRNASCNVmethylationHNSCC0.250.190.06proteinmRNASCNVmethylationLSCC0.340.080.24proteinmRNASCNVmethylationLUAD0.13-0.000.08proteinmRNASCNVmethylationOV-0.11-0.260.14proteinmRNASCNVmethylationPDAC-0.36-0.03-0.02proteinmRNASCNVmethylationUCEC-0.02-0.07-0.03proteinmRNASCNVmethylation

* 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 C8A 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.