Basic information

Full name
complement C1q A chain
Ensembl
ENSG00000173372.17
Summary
This gene encodes the A-chain polypeptide of serum complement subcomponent C1q, which associates with C1r and C1s to yield the first component of the serum complement system. C1q deficiency is associated with lupus erythematosus and glomerulonephritis. C1q is composed of 18 polypeptide chains which include 6 A-chains, 6 B-chains, and 6 C-chains. Each chain contains an N-terminal collagen-like region and a C-terminal C1q globular domain. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]
Annotation
Ligand

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-3.7e-6-6.1e-29--0.075-3.2e-27-1.5e-16--0.2-
protein-1.5e-24-1.8e-10-3.4e-12--1.6e-13-2.6e-22-3.9e-26-0.0461.6e-5-2.8e-3

* 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
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC789101112131415log2(RSEM+1)tumornormal
Protein expression
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC2323.52424.52525.52626.52727.52828.529log2(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

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC05101520253035400-5-10-15-20-25-30-35-40Pan-cancer0204060801001201401601802002202402600-20-40-60-80-100-120-140-160-180-200-220-240-260proteinRNASCNVclinicalpathwaycell 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 C1QA with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
ESTIMATE: StromalScore8.8e-492.0e-44.8e-97.7e-62.2e-162.6e-71.9e-66.9e-52.0e-63.2e-60.39
ESTIMATE: ESTIMATEScore3.3e-431.7e-41.2e-98.8e-62.2e-162.8e-44.2e-51.4e-53.2e-43.8e-40.063
HALLMARK_EPITHELIAL_MESENCHYMAL_TRANSITION1.2e-420.0132.2e-163.2e-76.2e-61.9e-59.9e-61.1e-52.4e-88.2e-6-0.86
HALLMARK_KRAS_SIGNALING_UP7e-384.1e-42.2e-165.4e-42.2e-161.4e-47.4e-61.1e-38.2e-50.130.78
xcell: Macrophage M14.3e-350.0211.9e-81.5e-52.2e-164.3e-41.9e-33.2e-80.0390.182.3e-3
PROGENy: TGFb5.5e-358.5e-39.0e-54.4e-48.4e-61.3e-51.1e-60.0272.2e-167.6e-7-0.92
xcell: Macrophage5.8e-351.7e-37.8e-74.7e-65.9e-103.3e-55.0e-42.7e-60.241.3e-44.3e-3
HALLMARK_INFLAMMATORY_RESPONSE1.3e-334.2e-35.1e-82.8e-79.7e-94.5e-45.7e-57.4e-80.0313.6e-30.3
HALLMARK_HYPOXIA2.3e-330.0120.0192e-81.6e-42.9e-63.3e-51.9e-82.7e-58.8e-60.48
HALLMARK_IL6_JAK_STAT3_SIGNALING2e-305.9e-36.5e-61.6e-52e-91.7e-32.1e-45.2e-80.0230.0230.065
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 C1QA

BRCA0.350.150.11proteinmRNASCNVmethylationCCRCC0.490.040.07proteinmRNASCNVmethylationCOAD0.36-0.09-0.06proteinmRNASCNVmethylationGBM0.68-0.030.09proteinmRNASCNVmethylationHNSCC0.390.12-0.02proteinmRNASCNVmethylationLSCC0.41-0.040.11proteinmRNASCNVmethylationLUAD0.36-0.130.05proteinmRNASCNVmethylationOV0.260.17-0.08proteinmRNASCNVmethylationPDAC0.330.000.22proteinmRNASCNVmethylationUCEC0.420.01-0.02proteinmRNASCNVmethylation

* 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 C1QA 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.