Basic information

Full name
complement factor B
Ensembl
ENSG00000243649.9
Summary
This gene encodes complement factor B, a component of the alternative pathway of complement activation. Factor B circulates in the blood as a single chain polypeptide. Upon activation of the alternative pathway, it is cleaved by complement factor D yielding the noncatalytic chain Ba and the catalytic subunit Bb. The active subunit Bb is a serine protease which associates with C3b to form the alternative pathway C3 convertase. Bb is involved in the proliferation of preactivated B lymphocytes, while Ba inhibits their proliferation. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. This cluster includes several genes involved in regulation of the immune reaction. Polymorphisms in this gene are associated with a reduced risk of age-related macular degeneration. The polyadenylation site of this gene is 421 bp from the 5' end of the gene for complement component 2. [provided by RefSeq, Jul 2008]
Annotation
Druggable target (Tier T4)

Protein product

  • ENST00000425368.7 Primary ENSP00000416561.2 (0 phosphosite)
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
RNA1.9e-21-2.5e-9--8.7e-70.081.9e-22--0.26-
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
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC456789101112131415161718log2(RSEM+1)tumornormal
Protein expression

* 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

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC0246810121416182022240-2-4-6-8-10-12-14-16-18-20-22-24Pan-cancer0510152025303540455055600-5-10-15-20-25-30-35-40-45-50-55-60proteinRNASCNVclinicalpathwaycell 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 CFB with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
cibersort: B cell naive-----------
cibersort: B cell memory-----------
cibersort: B cell plasma-----------
cibersort: T cell CD8+-----------
cibersort: T cell CD4+ naive-----------
cibersort: T cell CD4+ memory resting-----------
cibersort: T cell CD4+ memory activated-----------
cibersort: T cell follicular helper-----------
cibersort: T cell regulatory (Tregs)-----------
cibersort: T cell gamma delta-----------
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 CFB

BRCA-0.04proteinmRNASCNVmethylationCCRCC0.06proteinmRNASCNVmethylationCOAD0.18proteinmRNASCNVmethylationGBM0.19proteinmRNASCNVmethylationHNSCC0.00proteinmRNASCNVmethylationLSCC0.03proteinmRNASCNVmethylationLUAD-0.03proteinmRNASCNVmethylationOV0.34proteinmRNASCNVmethylationPDAC0.34proteinmRNASCNVmethylationUCEC0.09proteinmRNASCNVmethylation

* 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 CFB 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.