5-112839226-T-G

Position:

chr5-112839226-T-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000038.6(APC):c.3632T>G(p.Met1211Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000129 in 1,614,176 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

APC
NM_000038.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:9O:1

Conservation

PhyloP100: 4.45

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 Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0098952055).

BP6

Variant 5-112839226-T-G is Benign according to our data. Variant chr5-112839226-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 133538.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=8, not_provided=1, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.000135 (198/1461870) while in subpopulation SAS AF= 0.00216 (186/86258). AF 95% confidence interval is 0.0019. There are 0 homozygotes in gnomad4_exome. There are 151 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APC	NM_000038.6 linkuse as main transcript	c.3632T>G	p.Met1211Arg	missense_variant	16/16	ENST00000257430.9	NP_000029.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
APC	ENST00000257430.9 linkuse as main transcript	c.3632T>G	p.Met1211Arg	missense_variant	16/16	5	NM_000038.6	ENSP00000257430	P1	P25054-1

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00187

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000275

AC:

AN:

250614

Hom.:

AF XY:

0.000384

AC XY:

AN XY:

135444

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:

0.00226

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000135

AC:

198

AN:

1461870

Hom.:

Cov.:

AF XY:

0.000208

AC XY:

151

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00216

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00187

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ExAC

AF:

0.000272

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:9Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial adenomatous polyposis 1

Uncertain:2Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 24, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Feb 21, 2023	This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -
Uncertain significance, criteria provided, single submitter	clinical testing	Counsyl	Feb 07, 2017	- -
Uncertain significance, no assertion criteria provided	clinical testing	Department of Pathology and Laboratory Medicine, Sinai Health System	-	The APC p.Met1211Arg variant was not identified in the literature nor was it identified in dbSNP, NHLBI Exome Sequencing Project (Exome Variant Server), HGMD, COSMIC, MutDB, â€šÃ„ÃºInSiGHT Colon Cancer Databaseâ€šÃ„Ã¹, â€šÃ„ÃºZhejiang Colon Cancer Databaseâ€šÃ„Ã¹, and UMD. The variant was submitted to the Clinvar database 1X by multiple submitters (INVITAE as uncertain significance, and ITMI, classification not provided). The p.Met1211 residue is not conserved in mammals and lower organisms, increasing the likelihood that this variant does not have clinical significance. Computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein and this information is not very predictive of pathogenicity. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of unknown significance. -

not specified

Uncertain:1Benign:1Other:1

Uncertain significance, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Apr 18, 2017	- -
not provided, no classification provided	reference population	ITMI	Sep 19, 2013	- -
Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Dec 07, 2018	Variant summary: The variant, APC c.3632T>G (p.Met1211Arg) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00025 in 276326 control chromosomes, predominantly at a frequency of 0.0022 within the South Asian subpopulation in the gnomAD database. The observed variant frequency within South Asian control individuals in the gnomAD database is approximately 30.8 fold of the estimated maximal expected allele frequency for a pathogenic variant in APC causing Familial Adenomatous Polyposis phenotype (7.1e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of South Asian origin. The variant, c.3632T>G has been reported in the literature in individuals affected with breast and colorectal cancer (Chakrabarty_2017, Tung_2015, Chakrabarty _2017). This report does 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. Multiple laboratories reported the variant with conflicting assessments (likely benign (2X) and uncertain significance (3X)). Based on the evidence outlined above, the variant was classified as likely benign. -

Hereditary cancer-predisposing syndrome

Benign:3

Likely benign, criteria provided, single submitter	curation	Sema4, Sema4	Sep 09, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Sep 26, 2018	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. -
Likely benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Jun 19, 2016	- -

Classic or attenuated familial adenomatous polyposis

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Dec 01, 2023

- -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Sep 20, 2021

This variant is associated with the following publications: (PMID: 30093976, 29641532, 25186627, 24728327) -

APC-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 04, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.098

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Benign

0.64

DEOGEN2

Uncertain

0.51

D;D;T

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.24

FATHMM_MKL

Uncertain

0.78

LIST_S2

Benign

0.83

.;T;T

M_CAP

Benign

0.066

MetaRNN

Benign

0.0099

T;T;T

MetaSVM

Benign

-0.73

MutationAssessor

Benign

0.0

N;N;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.2

N;N;N

REVEL

Benign

0.25

Sift

Benign

0.076

T;T;D

Sift4G

Benign

0.32

T;T;T

Polyphen

0.0010

B;B;.

Vest4

0.27

MutPred

0.22

Gain of MoRF binding (P = 0.0502);Gain of MoRF binding (P = 0.0502);Gain of MoRF binding (P = 0.0502);

MVP

0.84

ClinPred

0.024

GERP RS

4.7

Varity_R

0.40

gMVP

0.47

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