FBXW7 K444fs
Gene Variant Detail

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Gene FBXW7
Variant K444fs
Impact List frameshift
Protein Effect loss of function - predicted
Gene Variant Descriptions FBXW7 K444fs results in a change in the amino acid sequence of the Fbxw7 protein beginning at aa 444 of 707, likely resulting in premature truncation of the functional protein (UniProt.org). K444fs has not been characterized however, due to the effects of other truncation mutations downstream of K444 (PMID: 24838835), is predicted to lead to a loss of Fbxw7 protein function.
Associated Drug Resistance
Category Variants Paths

FBXW7 mutant FBXW7 inact mut FBXW7 K444fs

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Transcript NM_001349798.2
gDNA chr4:g.(152328296_152328297)
cDNA c.(1330_1329)
Protein p.K444fs
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
XM_011532085 chr4:g.152328298_152328299insCCGGGGGGGGGGA c.1329_1330insCCCCCCCCCGGTC p.K444fs*32 RefSeq GRCh38/hg38
XM_047415899.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_017008362 chr4:g.152328298_152328299insCCGGGGGGGGGGA c.1329_1330insCCCCCCCCCGGTC p.K444fs*32 RefSeq GRCh38/hg38
NM_018315 chr4:g.152326081delT c.1331delA p.K444fs*32 RefSeq GRCh38/hg38
XM_011532084 chr4:g.152328298_152328299insCCGGGGGGGGGGA c.1329_1330insCCCCCCCCCGGTC p.K444fs*32 RefSeq GRCh38/hg38
XM_024454125.1 chr4:g.(152328212_152328213) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532085.2 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532084.3 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_024454123.2 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_047415901.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532087.2 chr4:g.(152328212_152328213) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532085.3 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
NM_001349798.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_024454122.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532086.2 chr4:g.(152328212_152328213) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_047415897.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532084.2 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532086 chr4:g.152328213_152328214insCGGGGGGGGGGGGGCAC c.1328_1329insGTGCCCCCCCCCCCCCG p.K444fs*32 RefSeq GRCh38/hg38
XM_024454121.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_047415900.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_047415898.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_047415902.1 chr4:g.(152328212_152328213) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
NM_033632.3 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
NM_001349798.2 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532083 chr4:g.152328298_152328299insCCGGGGGGGGGGA c.1329_1330insCCCCCCCCCGGTC p.K444fs*32 RefSeq GRCh38/hg38
XM_024454123.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532087 chr4:g.152328213_152328214insCGGGGGGGGGGGGGCAC c.1328_1329insGTGCCCCCCCCCCCCCG p.K444fs*32 RefSeq GRCh38/hg38
NM_018315.5 chr4:g.(152326080_152326081) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_011532087.3 chr4:g.(152328212_152328213) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
NM_033632 chr4:g.152328298_152328299insCCGGGGGGGGGGA c.1329_1330insCCCCCCCCCGGTC p.K444fs*32 RefSeq GRCh38/hg38
XM_011532086.3 chr4:g.(152328212_152328213) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
NM_033632.3 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
XM_024454124.1 chr4:g.(152328296_152328297) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38
NM_018315.4 chr4:g.(152326080_152326081) c.(1330_1329) p.K444fs RefSeq GRCh38/hg38

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  • Separate multiple filter terms with a space. Any order may be used (i. e. a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page. Filtering has no impact on query parameters.
  • Use quotes to match on a longer phrase with spaces (i.e. "mtor c1483f")

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
FBXW7 inact mut hematologic cancer sensitive Entinostat Preclinical Actionable In a preclinical study, entinostat (MS-275) inhibited cancer cells from advanced solid tumors and hematological cells harboring FBXW7 inactivating mutations in culture (PMID: 23274910). 23274910
FBXW7 inact mut Advanced Solid Tumor resistant Docetaxel Preclinical Actionable In a preclinical study, human cancer cell lines harboring FBXW7 inactivating mutations were resistant to docetaxel in culture (PMID: 23274910). 23274910
FBXW7 inact mut endometrial cancer predicted - sensitive RP-3500 + RP-6306 Phase I Actionable In a Phase I trial (MYTHIC), treatment with the combination of RP-6306 and RP-3500 in ovarian or endometrial cancer patients harboring CCNE1 amplification, FBXW7 mutations, and/or PPP2R1A mutations resulted in a clinical benefit rate (CBR) of 79%, a median progression-free survival (mPFS) of 21 weeks, and a response rate of 38% in ovarian cancer (n=24), and a CBR of 48%, mPFS of 17 weeks, and a response rate of 26% in endometrial cancer (n=27) (Cancer Res (2025) 85 (8_Supplement_2): CT262; NCT04855656). detail...
FBXW7 inact mut breast cancer sensitive Sirolimus Preclinical - Cell line xenograft Actionable In a preclinical study, breast cancer cells harboring a FBXW7 mutation demonstrated sensitivity to Rapamune (sirolimus) in culture and in cell line xenograft models (PMID: 18787170). 18787170
FBXW7 inact mut hematologic cancer sensitive Belinostat Preclinical Actionable In a preclinical study, Beleodaq (belinostat) inhibited human hematologic cancer cell lines harboring FBXW7 inactivating mutations in culture (PMID: 23274910). 23274910
FBXW7 inact mut Advanced Solid Tumor sensitive Entinostat Preclinical Actionable In a preclinical study, entinostat (MS-275) inhibited cancer cells from advanced solid tumors and hematological cells harboring FBXW7 inactivating mutations in culture (PMID: 23274910). 23274910
FBXW7 inact mut hematologic cancer sensitive REC-2282 Preclinical Actionable In a preclinical study, REC-2282 (AR-42) inhibited human hematologic cancer cell lines harboring FBXW7 inactivating mutations in culture (PMID: 23274910). 23274910
FBXW7 inact mut Advanced Solid Tumor sensitive REC-2282 Preclinical Actionable In a preclinical study, REC-2282 (AR-42) inhibited human cancer cell lines harboring FBXW7 inactivating mutations in culture (PMID: 23274910). 23274910
FBXW7 inact mut Advanced Solid Tumor sensitive Belinostat Preclinical Actionable In a preclinical study, Beleodaq (belinostat) inhibited human cancer cell lines harboring FBXW7 inactivating mutations in culture (PMID: 23274910). 23274910
FBXW7 mutant Her2-receptor negative breast cancer predicted - sensitive LY3039478 Case Reports/Case Series Actionable In a Phase I trial, LY3039478 treatment resulted in partial response lasted 9.5 months in a patient with hormone receptor-positive, Erbb2 (Her2)-negative breast cancer harboring FBXW7 mutation (PMID: 30060061; NCT01695005). 30060061