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Anti-Human Complement factor I Monoclonal Antibody (clone 1C11) -100 µg (CAT#: CB-P164-AB) Datasheet

Product Type
The monoclonal antibody 1C11 recognizes complement factor I (CFI). CFI is a protein of the complement system (serine protease), also known as C3b/C4f inactivator, and is a protein encoded by the CFI gene located on chromosome 4. CFI regulates complement activation by lysing cell binding or liquid phase C3b and C3b. C4b. CFI is mainly synthesized in the liver and is initially secreted as a single 88 kDa gene product. Then, the precursor protein is cleaved by furin to produce a mature CFI protein, which is the two residues of the heavy chain (residues 19-335, 51 kDa) and the light chain (residues 340-583, 37 kDa). Sulfur-linked dimer. Only mature proteins are active. Genetic polymorphisms in CFI have been observed (variants R201S, R406H, R502L). CFI deficiency can lead to uncontrolled activation of the complement alternative pathway, resulting in a decrease in the level of complement component 3 (C3) in plasma, and is associated with repeated bacterial infections in children; recently, mutations in the CFI gene have been shown to be associated with the development of hemolytic uremic syndrome Hemolytic uremic syndrome is also a kidney disease caused by uncontrolled complement activation. Monoclonal antibodies can be used to detect CFI levels in serum and plasma.
Infectious diseases, Nephrology
100 µg
Complement factor I
Mouse IgG1
Clone Number
PBS, containing 0.1% bovine serum albumin and 0.02% sodium azide.
Immuno assays, Western blot
Application Notes
For Western blots, the diluent to be used depends on the detection system used. It is recommended that users test reagents and determine their own optimal dilution. The typical initial working dilution is 1:50.
Storage Instructions
Product should be stored at 4°C. Under recommended storage conditions, product is stable for at least one year.
Complement factor I
Alternative Names
CFI; AHUS3; ARMD13; C3BINA; C3b-INA; FI; IF; KAF; complement factor I

All products and services are for Research Use Only. Do Not use in humans.


Creative Biolabs has established a team of customer support scientists ready to discuss ADCC/CDC optimization strategies, antibody production, bioinformatics analysis and other molecular biology/biotechnology issues.

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