rs1443626644

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000038.6(APC):​c.1249T>A​(p.Cys417Ser) 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. Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C417G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

APC
NM_000038.6 missense

Scores

9
5
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.02
Variant links:
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 Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 16 uncertain in NM_000038.6
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.856

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
APCNM_000038.6 linkuse as main transcriptc.1249T>A p.Cys417Ser missense_variant 10/16 ENST00000257430.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
APCENST00000257430.9 linkuse as main transcriptc.1249T>A p.Cys417Ser missense_variant 10/165 NM_000038.6 P1P25054-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250646
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135418
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Cov.:
33
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.41
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.89
.;D;D;T
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.84
T;.;D;D
M_CAP
Uncertain
0.16
D
MetaRNN
Pathogenic
0.86
D;D;D;D
MetaSVM
Pathogenic
0.84
D
MutationAssessor
Benign
1.4
.;L;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.92
D
PROVEAN
Pathogenic
-8.3
D;D;D;D
REVEL
Pathogenic
0.82
Sift
Benign
0.081
T;T;T;T
Sift4G
Benign
0.24
T;T;T;T
Polyphen
0.32
.;B;B;.
Vest4
0.89, 0.92
MutPred
0.66
.;Gain of MoRF binding (P = 0.0713);Gain of MoRF binding (P = 0.0713);Gain of MoRF binding (P = 0.0713);
MVP
0.97
ClinPred
0.79
D
GERP RS
5.9
Varity_R
0.91
gMVP
0.51

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1443626644; hg19: chr5-112154978; COSMIC: COSV57365101; COSMIC: COSV57365101; API