Skip to content
GeneQ20970075· pop 8· linked from 202 articles

Also known as AHUS3, ARMD13, C3BINA, C3b-INA, FI, IF, KAF, complement factor I

Protein

Gene data

CFI
Name
complement factor I
Type
protein-coding
Position
109,731,008–109,802,195 (−)
Aliases
AHUS3, ARMD13, C3BINA, C3b-INA, FI, IF, KAF
RefSeq RNA
NM_000204.5, NM_001318057.2, NM_001331035.2, NM_001375278.1, NM_001375279.1
RefSeq protein
NP_000195.3, NP_001304986.2, NP_001317964.1, NP_001362207.1, NP_001362208.1

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].

via MyGene.info

Gene · Ensembl

complement factor I

Symbol
CFI
Biotype
Protein coding
Organism
Homo sapiens
Location
4:109,730,868-109,802,200
Strand
Reverse (−)
Assembly
GRCh38
View on Ensembl →

via Ensembl · EMBL-EBI

Wikidata facts

Show 5 more facts
HomoloGene ID
171
genomic end
110723335
genomic start
110661852
cytogenetic location
4q25
Sources (7)

via Wikidata · CC0

Available in 8 languages

via Wikidata sitelinks · CC0

Connections

Categories