rs759610249

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_001349798.2(FBXW7):​c.1973G>T​(p.Arg658Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Consequence

FBXW7
NM_001349798.2 missense

Scores

9
7
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.84
Variant links:
Genes affected
FBXW7 (HGNC:16712): (F-box and WD repeat domain containing 7) This gene encodes a member of 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 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 was previously referred to as FBX30, and belongs to the Fbws class; in addition to an F-box, this protein contains 7 tandem WD40 repeats. This protein binds directly to cyclin E and probably targets cyclin E for ubiquitin-mediated degradation. Mutations in this gene are detected in ovarian and breast cancer cell lines, implicating the gene's potential role in the pathogenesis of human cancers. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the FBXW7 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 24 curated pathogenic missense variants (we use a threshold of 10). The gene has 5 curated benign missense variants. Gene score misZ: 3.7111 (above the threshold of 3.09). Trascript score misZ: 4.5266 (above the threshold of 3.09). GenCC associations: The gene is linked to developmental delay, hypotonia, and impaired language.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.838

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FBXW7NM_001349798.2 linkc.1973G>T p.Arg658Leu missense_variant Exon 14 of 14 ENST00000281708.10 NP_001336727.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FBXW7ENST00000281708.10 linkc.1973G>T p.Arg658Leu missense_variant Exon 14 of 14 1 NM_001349798.2 ENSP00000281708.3 Q969H0-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.48
T;.;T;.;.;T
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
.;D;.;.;D;D
M_CAP
Benign
0.039
D
MetaRNN
Pathogenic
0.84
D;D;D;D;D;D
MetaSVM
Benign
-0.86
T
MutationAssessor
Uncertain
2.6
M;.;M;.;.;M
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-6.8
.;D;D;.;D;.
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0010
.;D;D;.;D;.
Sift4G
Uncertain
0.011
D;D;D;.;D;D
Polyphen
1.0
D;D;D;D;D;D
Vest4
0.85
MutPred
0.54
Loss of sheet (P = 0.1158);.;Loss of sheet (P = 0.1158);.;.;Loss of sheet (P = 0.1158);
MVP
0.87
MPC
3.1
ClinPred
0.99
D
GERP RS
5.7
Varity_R
0.86
gMVP
0.87

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-153244184; API