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FANCF
Fanconi anemia group F protein is a protein that in humans is encoded by the FANCF gene.
FANCF has been shown to interact with Fanconi anemia, complementation group C, FANCG, FANCA and FANCE.
FANCF is an adaptor protein that plays a key role in the proper assembly of the FA core complex. The FA core complex is composed of eight proteins (FANCA, -B, -C, -E, -F, -G, -L and -M). FANCF stabilizes the interaction between the FANCC/FANCE subcomplex and the FANCA/FANCG subcomplex and locks the whole FA core complex in a conformation that is essential to perform its function in DNA repair.
The FA core complex is a nuclear core complex that is essential for the monoubiquitination of FANCD2 and this modified form of FANCD2 colocalizes with BRCA1, RAD51 and PCNA in foci that also contain other DNA repair proteins. All these proteins function together to facilitate DNA interstrand cross-link repair. They also function in other DNA damage response repair processes including recovering and stabilizing stalled replication forks. FoxF1 protein also interacts with the FA protein core and induces its binding to chromatin to promote DNA repair.
DNA damage appears to be the primary underlying cause of cancer, and deficiencies in expression of DNA repair genes appear to underlie many forms of cancer. If DNA repair is deficient, DNA damage tends to accumulate. Such excess DNA damage may increase mutations due to error-prone translesion synthesis. Excess DNA damage may also increase epigenetic alterations due to errors during DNA repair. Such mutations and epigenetic alterations may give rise to cancer.
Reductions in expression of DNA repair genes (usually caused by epigenetic alterations) are very common in cancers, and are most often much more frequent than mutational defects in DNA repair genes in cancers.[citation needed] (Also see Frequencies of epimutations in DNA repair genes.)
Methylation of the promoter region of the FANCF gene causes reduced expression of FANCF protein.
The frequencies of FANCF promoter methylation in several different cancers is indicated in the table.
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FANCF
Fanconi anemia group F protein is a protein that in humans is encoded by the FANCF gene.
FANCF has been shown to interact with Fanconi anemia, complementation group C, FANCG, FANCA and FANCE.
FANCF is an adaptor protein that plays a key role in the proper assembly of the FA core complex. The FA core complex is composed of eight proteins (FANCA, -B, -C, -E, -F, -G, -L and -M). FANCF stabilizes the interaction between the FANCC/FANCE subcomplex and the FANCA/FANCG subcomplex and locks the whole FA core complex in a conformation that is essential to perform its function in DNA repair.
The FA core complex is a nuclear core complex that is essential for the monoubiquitination of FANCD2 and this modified form of FANCD2 colocalizes with BRCA1, RAD51 and PCNA in foci that also contain other DNA repair proteins. All these proteins function together to facilitate DNA interstrand cross-link repair. They also function in other DNA damage response repair processes including recovering and stabilizing stalled replication forks. FoxF1 protein also interacts with the FA protein core and induces its binding to chromatin to promote DNA repair.
DNA damage appears to be the primary underlying cause of cancer, and deficiencies in expression of DNA repair genes appear to underlie many forms of cancer. If DNA repair is deficient, DNA damage tends to accumulate. Such excess DNA damage may increase mutations due to error-prone translesion synthesis. Excess DNA damage may also increase epigenetic alterations due to errors during DNA repair. Such mutations and epigenetic alterations may give rise to cancer.
Reductions in expression of DNA repair genes (usually caused by epigenetic alterations) are very common in cancers, and are most often much more frequent than mutational defects in DNA repair genes in cancers.[citation needed] (Also see Frequencies of epimutations in DNA repair genes.)
Methylation of the promoter region of the FANCF gene causes reduced expression of FANCF protein.
The frequencies of FANCF promoter methylation in several different cancers is indicated in the table.