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Cytoplasmic staining of varying intensities was observed in tumor cells in a few cases of a majority of cancer types. Most lymphomas were strongly stained. Moderate to strong cytoplasmic positivity was displayed in immune cells in tumor stroma.
GENE INFORMATION
Gene name
CCNF (HGNC Symbol)
Synonyms
FBX1, FBXO1
Description
Cyclin F (HGNC Symbol)
Entrez gene summary
This gene encodes a member of the cyclin family. Cyclins are important regulators of cell cycle transitions through their ability to bind and activate cyclin-dependent protein kinases. This member also belongs to the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of the ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class and it was one of the first proteins in which the F-box motif was identified. [provided by RefSeq, Jul 2008]