FANCF (Fanconi Anemia Complementation Group F) antibody conjugated to biotin is a specialized immunological reagent designed for detecting the FANCF protein, a critical component of the Fanconi anemia DNA repair pathway. Biotin conjugation enables high-sensitivity detection through streptavidin-based amplification systems, making it ideal for applications like ELISA and Western blotting .
ELISA: Optimal for quantitative detection of FANCF in human samples .
Western Blot (WB): Validated for identifying FANCF in lysates .
Signal Amplification: Biotin-streptavidin systems enhance sensitivity for low-abundance targets .
Versatility: Compatible with enzymatic (HRP) or fluorescent streptavidin conjugates .
Multiplexing: Enables simultaneous detection of multiple targets in complex assays .
Biotin is typically attached via amine-reactive NHS esters, targeting lysine residues on the antibody. Long-armed biotin (e.g., biotin-XX) minimizes steric hindrance, improving avidin binding efficiency .
Specificity: Polyclonal design ensures broad epitope recognition within AA 295–341 .
Cross-Reactivity: Validated for human reactivity; no cross-species reactivity reported .
Preservative Safety: Contains ProClin-300, a hazardous preservative requiring trained handling .
Research highlights key differences between biotinylation methods:
Clinical Relevance: FANCF mutations are linked to Fanconi anemia, a disorder causing bone marrow failure and cancer predisposition. This antibody aids in studying DNA repair mechanisms .
Performance in IHC: ZBPA-conjugated biotinylated antibodies show superior specificity in tissue microarrays compared to conventional kits (e.g., Lightning-Link) .
Sensitivity: Requires optimization of antibody dilution for low-expression targets .
Hazardous Components: ProClin-300 necessitates careful disposal and handling .
Emerging techniques like tyramide signal amplification (e.g., Biotin XX Tyramide SuperBoost Kit) may further enhance detection limits for FANCF in complex samples .