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  • F2055 - Anti-hFBXW7 antibody , Mouse monoclonal

F2055 Sigma-Aldrich

Anti-hFBXW7 antibody , Mouse monoclonal

clone FB407, purified from hybridoma cell culture

Synonym: Anti-ARCHIPELAGO (Drosophila), Anti-Cdc4 (S. serevisia), Anti-F-box and WD40 domain protein 7, Anti-FBW7, Anti-SEL-10 (C. elegance)



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Cell Cycle, Antibodies for Epigenetics and Nuclear Signaling,
conjugate   unconjugated
clone   FB407, monoclonal
biological source   mouse
application(s)   immunocytochemistry: 10-20 μg/mL using human A431 or HeLa cells
  indirect ELISA: suitable
  western blot: 5-10 μg/mL using human A431 cell extracts
species reactivity   rat, human, mouse
mol wt   antigen ~60 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   purified from hybridoma cell culture
isotype   IgG2a
Quality Level   200
antibody product type   primary antibodies
concentration   ~2 mg/mL
UniProt accession no.   Q969H0
Gene Information   human ... FBXW7(55294)
mouse ... Fbxw7(50754)


General description

FBXW7 is a member of F-box protein family, which acts as a substrate recognition component of the ubiquitin ligase complex SCF (Skp-Cullin-F-box). The proteins have a bipartite structure. The shared F-box motif links F-box protein to Skp1 and the core complex, whereas divergent protein-protein interaction motifs selectively bind their cognate substrates. There are three FBXW7 isoforms α, β and γ that share 10 out of 11 exons but they differ in their subcellular localization as well as in substrate recognition activity.

Monoclonal Anti-hFBXW7 (mouse IgG2a isotype) is derived from the hybridoma FB407 produced by the fusion of mouse myeloma cells (NS1 cells) and splenocytes from BALB/c mice immunized with a synthetic peptide corresponding to amino-acids of human hFBXW7 isoforms α β and γ. FBXW7 is located on human chromosome 4q31.


The antibody recognizes human, mouse, and rat hFBXW7.


synthetic peptide corresponding to amino-acids 238-250 of human hFBXW7 isoforms α, β, and γ.


Anti-hFBXW7 antibody, Mouse monoclonal has been used in:
• enzyme-linked immunosorbent assay (ELISA)
• immunoblotting
• immunocytochemistry

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

F-box proteins is associated with various signalling pathways, such as nutrient sensing in yeast,conserved developmental pathways in plants and animals. These proteins mediate recognition of phosphorylated targets including Cyclin E, Myc, c-Jun, and Notch, leading to their ubiquitination and degradation. Furthermore, it was found mutated in breast, endometrial, ovarian, and colon cancer, and finally results in genomic instability. Similar to the inactivation mode of other known tumor suppressors, the SV40 large T antigen binds FBXW7 without detectible effects on its stability, and thus acts as an inhibitor of FBXW7 activity.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

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Western Blot Protocol | Immunoblotting Protocol

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