Basic information

Full name
complement factor I
Ensembl
ENSG00000205403.13
Summary
This gene encodes a serine proteinase that is essential for regulating the complement cascade. The encoded preproprotein is cleaved to produce both heavy and light chains, which are linked by disulfide bonds to form a heterodimeric glycoprotein. This heterodimer can cleave and inactivate the complement components C4b and C3b, and it prevents the assembly of the C3 and C5 convertase enzymes. Defects in this gene cause complement factor I deficiency, an autosomal recessive disease associated with a susceptibility to pyogenic infections. Mutations in this gene have been associated with a predisposition to atypical hemolytic uremic syndrome, a disease characterized by acute renal failure, microangiopathic hemolytic anemia and thrombocytopenia. Primary glomerulonephritis with immune deposits and age-related macular degeneration are other conditions associated with mutations of this gene. [provided by RefSeq, Dec 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-2.1e-16--6.7e-15---0.54-1.7e-180.086--3.5e-3-
protein-8e-42--0.22-9.2e-9--7.8e-20-6.8e-31-8e-29-2.3e-42.4e-6-0.57

* 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
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC5678910111213141516log2(RSEM+1)tumornormal
Protein expression
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC17181920212223242526log2(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

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC02468101214161820222426280-2-4-6-8-10-12-14-16-18-20-22-24-26-28Pan-cancer051015202530354045505560650-5-10-15-20-25-30-35-40-45-50-55-60-65proteinRNASCNVclinicalpathwaycell 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 CFI 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_UV_RESPONSE_DN1.8e-221.0e-41.1e-40.360.0129.4e-41.3e-60.0510.026.7e-51.2e-3
HALLMARK_EPITHELIAL_MESENCHYMAL_TRANSITION1.1e-214.0e-41.1e-46.3e-32.2e-33.0e-52.6e-50.0570.0754.6e-40.14
xcell: stroma score2.8e-211.0e-48.8e-50.0110.170.029.7e-70.470.0168.1e-73.5e-3
HALLMARK_KRAS_SIGNALING_UP3e-200.0131.8e-39.2e-31.7e-61.4e-56.0e-56.3e-30.0290.260.08
HALLMARK_MYOGENESIS1.7e-191.8e-31.4e-30.0311.7e-46.2e-33.9e-70.960.0385.3e-50.018
ESTIMATE: StromalScore5.9e-191.9e-36.0e-45.3e-34.1e-54.1e-45.0e-50.410.0870.0030.11
xcell: Endothelial cell8.1e-194.4e-52.9e-40.370.191.3e-31.6e-93.5e-40.0560.220.034
PROGENy: TGFb1.3e-184.1e-31.8e-40.0141.3e-31.4e-31.3e-50.240.0622.6e-50.46
HALLMARK_ANGIOGENESIS1.2e-171.6e-56.1e-42.8e-30.0371.5e-44.9e-60.0320.024-0.30.013
HALLMARK_HYPOXIA2.4e-170.040.0720.0440.0011.8e-64.4e-56.3e-50.12.3e-30.92
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 CFI

BRCA0.37-0.080.15proteinmRNASCNVmethylationCCRCC-0.140.040.00proteinmRNASCNVmethylationCOAD0.32-0.06-0.06proteinmRNASCNVmethylationGBM0.29-0.15-0.07proteinmRNASCNVmethylationHNSCC0.280.120.17proteinmRNASCNVmethylationLSCC0.400.100.41proteinmRNASCNVmethylationLUAD0.450.080.26proteinmRNASCNVmethylationOV0.210.180.36proteinmRNASCNVmethylationPDAC0.080.080.31proteinmRNASCNVmethylationUCEC0.550.050.15proteinmRNASCNVmethylation

* 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 CFI 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.