rs202199891

Positions:

chr5-112827969-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP3BP6BS2

The NM_000038.6(APC):c.1589T>C(p.Val530Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000744 in 1,613,296 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V530L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000080 ( 0 hom. )

Consequence

APC
NM_000038.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:2

Conservation

PhyloP100: 7.67

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]

APC links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.814

BP6

Variant 5-112827969-T-C is Benign according to our data. Variant chr5-112827969-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 219535.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=10}.

BS2

High AC in GnomAdExome4 at 117 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
APC	NM_000038.6 linkuse as main transcript	c.1589T>C	p.Val530Ala	missense_variant	13/16	ENST00000257430.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APC	ENST00000257430.9 linkuse as main transcript	c.1589T>C	p.Val530Ala	missense_variant	13/16	5	NM_000038.6	P1	P25054-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000319

AC:

AN:

250846

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135552

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.0000618

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000801

AC:

117

AN:

1460934

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

726792

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000989

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152362

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74522

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:10Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:3Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Feb 21, 2020	This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneKor MSA	Aug 01, 2018	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Apr 19, 2023	This missense variant replaces valine with alanine at codon 530 of the APC protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been performed for this variant. This variant has been observed in individuals affected with colorectal adenomas (PMID: 22773231, Cetani 2017), familial adenomatous polyposis (PMID: 23159591), attenuated adenomatous polyposis (PMID: 22976915), colorectal cancer (PMID: 28135145). This variant has been identified in 8/250846 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Aug 25, 2021	- -

Familial adenomatous polyposis 1

Uncertain:2Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 22, 2024	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Mendelics	Jul 02, 2018	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Oct 17, 2023	- -

not specified

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Dec 02, 2016	The p.Val530Ala variant in APC has been reported in three individuals: 1 with a ttenuated familial adenomatous polyposis (AFAP; de Leon 2013), 1 with multiple colorectal adenomas (Urso 2013), and 1 with suspected FAP (Kerr 2013). This vari ant has also been identified in 3/66436 of European chromosomes by the Exome Agg regation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs202199891). C omputational prediction tools and conservation analysis suggest that the p.Val53 0Ala variant may impact the protein, though this information is not predictive e nough to determine pathogenicity. In summary, the clinical significance of the p .Val530Ala variant is uncertain. -
Uncertain significance, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 10, 2018	Variant summary: APC c.1589T>C (p.Val530Ala) affects a conserved nucleotide and results in a non-conservative amino acid change located in an Armadillo repeat domain of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 3.3e-05 in 245588 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.1589T>C has been reported in the literature in individuals affected with Familial Adenomatous Polyposis (FAP) (Kerr 2013), attenuated FAP (AFAP) (deLeon 2013, Urso 2012) and Colorectal Cancer (Yurgelun 2017). These reports do not provide unequivocal conclusions about association of the variant with Familial Adenomatous Polyposis. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Five clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jan 18, 2024	In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in at least two individuals with multiple colorectal adenomas or polyposis, an individual being evaluated for Familial Adenomatous Polyposis (FAP), and an individual with colorectal cancer (PMID: 22976915, 23159591, 22773231, 28135145); Co-observed with biallelic pathogenic PMS2 variants in an individual with adenomas and multiple small intestinal and colorectal cancers (PMID: 36360190); This variant is associated with the following publications: (PMID: 22976915, 23159591, 22773231, 28135145, 31159747, 31486992, 18199528, 36360190) -
Uncertain significance, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	May 01, 2024	APC: PM2, PS4:Moderate, PP3, BP1 -

Classic or attenuated familial adenomatous polyposis

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Dec 18, 2023

This missense variant replaces valine with alanine at codon 530 of the APC protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has been observed in individuals affected with colorectal adenomas (PMID: 22773231, Cetani 2017), familial adenomatous polyposis (PMID: 23159591), attenuated adenomatous polyposis (PMID: 22976915) or colorectal cancer (PMID: 28135145). This variant has been identified in 8/250846 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.86

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.73

.;D;D;D;T

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

D;.;D;D;D

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.81

D;D;D;D;D

MetaSVM

Uncertain

0.16

MutationAssessor

Benign

2.0

.;M;M;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.88

PROVEAN

Uncertain

-4.0

D;D;D;D;.

REVEL

Pathogenic

0.80

Sift

Uncertain

0.0030

D;D;D;D;.

Sift4G

Uncertain

0.0030

D;D;D;D;D

Polyphen

1.0

.;D;D;.;.

Vest4

0.93, 0.92

MVP

0.85

ClinPred

0.86

GERP RS

5.4

Varity_R

0.69

gMVP

0.69

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over