5-112838843-T-G

Position:

chr5-112838843-T-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_000038.6(APC):c.3249T>G(p.Asp1083Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000245 in 1,614,166 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

APC
NM_000038.6 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:10

Conservation

PhyloP100: 0.354

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:

ENSG00000258864 (HGNC:):

ENSG00000258864 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.046270996).

BP6

Variant 5-112838843-T-G is Benign according to our data. Variant chr5-112838843-T-G is described in ClinVar as [Likely_benign]. Clinvar id is 41525.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 29 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
APC	NM_000038.6 linkuse as main transcript	c.3249T>G	p.Asp1083Glu	missense_variant	16/16	ENST00000257430.9	NP_000029.2	P25054-1Q4LE70

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
APC	ENST00000257430.9 linkuse as main transcript	c.3249T>G	p.Asp1083Glu	missense_variant	16/16	5	NM_000038.6	ENSP00000257430.4		P25054-1
ENSG00000258864	ENST00000520401.1 linkuse as main transcript	n.228+9871T>G		intron_variant		3		ENSP00000454861.1		H3BNH8

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000323

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000148

AC:

AN:

250358

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135368

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00130

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000195

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.000251

AC:

367

AN:

1461824

Hom.:

Cov.:

AF XY:

0.000243

AC XY:

177

AN XY:

727208

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000957

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000276

Gnomad4 OTH exome

AF:

0.000563

GnomAD4 genome

AF:

0.000190

AC:

AN:

152342

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00115

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000323

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000190

Hom.:

Bravo

AF:

0.000185

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000237

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:5

Likely benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	May 15, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	May 16, 2016	Variant summary: The APC c.3249T>G (p.Asp1083Glu) variant involves the alteration of a non-conserved nucleotide. 4/4 in silico tools predict a benign outcome for this variant (SNPs&GO not captured due to low reliability index). It does not lie in a known MCR (mutation cluster region) located at exon 15 where pathogenic variants are clustered (PMIDs 1338904 and 18387968). This variant was found in 17/121710 control chromosomes, predominantly observed in the European (Non-Finnish) subpopulation at a frequency of 0.0002413 (16/66310). This frequency is about 3 times the estimated maximal expected allele frequency of a pathogenic APC variant (0.0000714), suggesting this is likely a benign polymorphism found primarily in the populations of European (Non-Finnish) origin. In a FAP family reported in literature, it was found in affected as well as unaffected members suggesting that it is unlikely to cause disease in the family (Gayther_1995). In addition, it was also found to co-occur with another pathogenic variant c.1312+3A>G in one sample reported n UMD database, further supporting a benign outcome. A diagnostic center and a reputable database have classified this variant as likely benign/benign. Taken together, this variant has been classified as Benign. -
Benign, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Aug 09, 2022	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Feb 03, 2021	In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25722345, 25203624, 22703879, 24599579, 12093899, 28051113, 27882345, 7562975) -
Uncertain significance, no assertion criteria provided	research	Biesecker Lab/Clinical Genomics Section, National Institutes of Health	Jul 13, 2012	- -
Likely benign, no assertion criteria provided	clinical testing	Department of Pathology and Laboratory Medicine, Sinai Health System	-	The APC p.Asp1083Glu variant has been previously reported in the literature in the rectum/sigmoid colon tumour of a 77-year-old colorectal cancer patient, in addition to another pathogenic APC variant; however, it is not clear if these variants were on the same or opposite alleles (Smith 2002). The p.Asp1083Glu variant was also listed in the Exome Variant Server in 3/13001 chromosomes of apparently healthy individuals. This residue is not highly conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time, although we would lean towards a more benign role for this variant. This variant is classified as Predicted Benign. -

Hereditary cancer-predisposing syndrome

Benign:3

Benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Nov 27, 2015	This alteration is classified as 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. -
Benign, criteria provided, single submitter	curation	Sema4, Sema4	May 28, 2021	- -
Benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Jun 19, 2016	- -

APC-Associated Polyposis Disorders

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Familial adenomatous polyposis 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.35

.;T;T;T

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.32

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.66

T;.;T;T

M_CAP

Benign

0.031

MetaRNN

Benign

0.046

T;T;T;T

MetaSVM

Benign

-0.61

MutationAssessor

Benign

0.11

.;N;N;.

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.69

N;N;N;N

REVEL

Uncertain

0.31

Sift

Benign

0.29

T;T;T;T

Sift4G

Benign

0.33

T;T;T;T

Polyphen

0.0

.;B;B;.

Vest4

0.13, 0.12

MutPred

0.11

.;Loss of loop (P = 0.0374);Loss of loop (P = 0.0374);Loss of loop (P = 0.0374);

MVP

0.73

ClinPred

0.080

GERP RS

4.5

Varity_R

0.026

gMVP

0.16

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