The following gene names and symbols are associated with antigen Complement Factor I across different species:

complement factor I (CFI), complement component factor i (Cfi), complement factor I (Cfi), complement factor I (cfi), Factor I C3b/C4b inactivator (serine protease) (Cfi), complement factor I (LOC100338923)

Other aliases include:

FI, IF, KAF, AHUS3, C3BINA, C3b-INA, cfi, MGC53615, Cfi, factor I, CFI, MGC128240, DKFZp470D0233

On the protein level the following designations are being used for antigen Complement Factor I:

complement factor I – C3b-inactivator – C3B/C4B inactivator – complement component I – light chain of factor I – Konglutinogen-activating factor – complement factor I heavy chain – complement control protein factor I – I factor (complement) – complement component 1 – complement factor 1

Complement Factor I fulfills a number of functions:

peptidase activity – scavenger receptor activity – serine-type endopeptidase activity – hydrolase activity – serine-type peptidase activity – catalytic activity

Complement Factor I is relevant to the following processes:

complement activation, classical pathway – innate immune response – proteolysis – immune response

Locations for Complement Factor I:

extracellular region – extracellular space – membrane

Source: NCBI Entrez Gene, Gene Ontology