GRADE & PURITYAnimal Free?Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material.Carrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.His Tag?His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein.PBS Only?PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers.≥90%(SDS-PAGE)See COA
Animal Free,Carrier Free,His Tag,PBS Only,≥90%(SDS-PAGE),See COA Animal Free,Carrier Free,His Tag,PBS Only for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Specifications
Product Name
Recombinant Human Factor I/CFI Protein
Synonyms
AHUS3 | ARMD13 | C3b INA | C3b inactivator | C3B/C4B inactivator | C3BINA | CFAI_HUMAN | Cfi | Complement component I | Complement control protein factor I | Complement factor I | Complement factor I heavy chain | Complement factor I light chain | F1 | fa
Grade
Animal Free, Carrier Free, His Tag, PBS Only
Specifications & Purity
Animal Free, Carrier Free, His Tag, PBS Only, ≥90%(SDS-PAGE), See COA
Biochemical and Physiological Mechanisms
Responsible for cleaving the alpha-chains of C4b and C3b in the presence of the cofactors C4-binding protein and factor H respectively.
49.6& 100.5 kDa, under reducing conditions; 51.0 & 91.2 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Concentration
See COA
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 0.5 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20°C for 1 year. Avoid freeze/thaw cycle.
Images
Recombinant Human Factor I/CFI Protein (rp188485) - SDS-PAGE 3 μg/lane of Recombinant Human Factor I/CFI Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 49.6& 100.5 kDa under reducing conditions and 51.0 & 91.2 kDa under non-reducing conditions. The observation of Factor I/CFI Protein as both dimers and monomers under non-reducing (NR) conditions suggests that a portion of the protein forms dimers. This dimerization may be mediated by (or stabilized by) disulfide bonds (Uniprot: P05156).
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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