5-112837686-T-G
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_000038.6(APC):c.2092T>G(p.Leu698Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L698F) has been classified as Uncertain significance.
Frequency
Genomes: not found (cov: 32)
Consequence
APC
NM_000038.6 missense
NM_000038.6 missense
Scores
3
8
6
Clinical Significance
Conservation
PhyloP100: 0.158
Genes affected
APC (HGNC:583): (APC regulator of WNT signaling pathway) This gene encodes a tumor suppressor protein that acts as an antagonist of the Wnt signaling pathway. It is also involved in other processes including cell migration and adhesion, transcriptional activation, and apoptosis. Defects in this gene cause familial adenomatous polyposis (FAP), an autosomal dominant pre-malignant disease that usually progresses to malignancy. Mutations in the APC gene have been found to occur in most colorectal cancers, where disease-associated mutations tend to be clustered in a small region designated the mutation cluster region (MCR) and result in a truncated protein product. [provided by RefSeq, Jun 2022]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
APC | NM_000038.6 | c.2092T>G | p.Leu698Val | missense_variant | 16/16 | ENST00000257430.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
APC | ENST00000257430.9 | c.2092T>G | p.Leu698Val | missense_variant | 16/16 | 5 | NM_000038.6 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Familial adenomatous polyposis 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 21, 2016 | Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may alter RNA splicing, but this prediction has not been confirmed by published transcriptional studies. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies. This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a APC-related disease. This sequence change replaces leucine with valine at codon 698 of the APC protein (p.Leu698Val). The leucine residue is highly conserved and there is a small physicochemical difference between leucine and valine. In summary, this variant is a novel missense change with uncertain impact on mRNA splicing and protein function. It has been classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
Cadd
Benign
Dann
Uncertain
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Uncertain
D;.;D;D;D
M_CAP
Benign
D
MetaRNN
Uncertain
D;D;D;D;D
MetaSVM
Benign
T
MutationTaster
Benign
D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D;D;D;.
REVEL
Uncertain
Sift
Uncertain
D;D;D;D;.
Sift4G
Uncertain
D;D;D;D;D
Polyphen
1.0
.;D;D;.;.
Vest4
0.82, 0.61
MutPred
0.54
.;Loss of stability (P = 0.0796);Loss of stability (P = 0.0796);Loss of stability (P = 0.0796);.;
MVP
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at