5-112839105-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_000038.6(APC):c.3511C>T(p.Arg1171Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000366 in 1,613,954 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1171L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00028 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00037 ( 3 hom. )

Consequence

APC
NM_000038.6 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:19O:1

Conservation

PhyloP100: 3.72

Publications

20 publications found

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 Gene-Disease associations (from GenCC):

classic or attenuated familial adenomatous polyposis
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
desmoid tumor
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp
familial adenomatous polyposis 1
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
gastric adenocarcinoma and proximal polyposis of the stomach
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet
sarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
APC-related attenuated familial adenomatous polyposis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Turcot syndrome with polyposis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Cenani-Lenz syndactyly syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

APC links:

ENSG00000258864 (HGNC:):

ENSG00000258864 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.041510195).

BP6

Variant 5-112839105-C-T is Benign according to our data. Variant chr5-112839105-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 133518.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Homozygotes in GnomAdExome4 at 3 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APC	NM_000038.6 link	c.3511C>T	p.Arg1171Cys	missense_variant	Exon 16 of 16	ENST00000257430.9	NP_000029.2	P25054-1Q4LE70

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APC	ENST00000257430.9 link	c.3511C>T	p.Arg1171Cys	missense_variant	Exon 16 of 16	5	NM_000038.6	ENSP00000257430.4		P25054-1
ENSG00000258864	ENST00000520401.1 link	n.228+10133C>T		intron_variant	Intron 3 of 7	3		ENSP00000454861.1		H3BNH8

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

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:

0.000235

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.000344

AC:

AN:

250294

AF XY:

0.000302

show subpopulations

Gnomad AFR exome

AF:

0.0000633

Gnomad AMR exome

AF:

0.00121

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000309

Gnomad OTH exome

AF:

0.00115

GnomAD4 exome

AF:

0.000375

AC:

548

AN:

1461716

Hom.:

Cov.:

AF XY:

0.000353

AC XY:

257

AN XY:

727174

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33480

American (AMR)

AF:

0.00125

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53348

Middle Eastern (MID)

AF:

0.00243

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000391

AC:

435

AN:

1111918

Other (OTH)

AF:

0.000629

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

105

140

175

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000276

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74438

show subpopulations

African (AFR)

AF:

0.000144

AC:

AN:

41532

American (AMR)

AF:

0.00111

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000235

AC:

AN:

68018

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000328

Hom.:

Bravo

AF:

0.000351

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000313

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000436

EpiControl

AF:

0.000474

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:19Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:5

Feb 02, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 23292937, 26976419, 24599579, 24728327, 25980754, 19642502, 9950360, 25981591, 24163242) -

Oct 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

APC: BS1 -

Aug 08, 2017

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 24, 2017

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 16, 2016

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: The APC c.3511C>T (p.Arg1171Cys) variant involves the alteration of a conserved nucleotide. 2/4 in silico tools predict a benign outcome for this variant (SNPs&GO not captured due to low reliability index). This variant was found in 38/120476 control chromosomes (1 homozygote), predominantly observed in the Latino subpopulation at a frequency of 0.0014724 (17/11546). This frequency is about 21 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 Latino origin. This variant has been reported in an affected individual with no evidence for causality, and authors classified this variant as polymorphism. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as likely benign/benign. Taken together, this variant is classified as likely benign. -

Familial adenomatous polyposis 1

Benign:4

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 21, 2024

Myriad Genetics, Inc.

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Jul 02, 2018

Mendelics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome

Benign:4

Oct 09, 2020

Sema4, Sema4

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:curation

- -

Jul 19, 2018

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Mar 21, 2016

Color Diagnostics, LLC DBA Color Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 27, 2025

Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The missense variant NM_000038.6(APC):c.3511C>T (p.Arg1171Cys) has been reported to ClinVar as Benign/Likely benign with a status of (2 stars) criteria provided, multiple submitters, no conflicts (Variation ID 133518 as of 2025-01-02). The nucleotide c.3511 in APC is predicted conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Benign -

not specified

Benign:2Other:1

Sep 22, 2018

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 19, 2013

ITMI

Significance:not provided

Review Status:no classification provided

Collection Method:reference population

- -

Carcinoma of colon

Uncertain:1Benign:1

Jul 24, 2017

3DMed Clinical Laboratory Inc

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

The APC p.Arg1171Cys variant was identified in 1 of 2520 proband chromosomes (frequency: 0.0002) from individuals or families with lynch syndrome and was present in 1 of 1362 control chromosomes (frequency: 0.0007) from healthy individuals (Bodian 2014, Yurgelun 2015). The variant was also identified in dbSNP (ID: rs201830995) as "With Likely benign allele ", ClinVar (classified as benign by Invitae and one clinical laboratory; as likely benign by Ambry Genetics, GeneDx and three clinical laboratories), Cosmic (6x in Stomach, Large intestine, Haematopoietic and lymphoid tissue or Endometrium), MutDB, LOVD 3.0 (4x), and in UMD-LSDB (1x likely neutral), databases. The variant was not identified in COGR, or Zhejiang University, databases. The variant was identified in control databases in 98 of 276674 chromosomes (2 homozygous) at a frequency of 0.0004 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 4 of 24006 chromosomes (freq: 0.0002), Other in 11 of 6450 chromosomes (freq: 0.002), Latino in 44 of 34406 chromosomes (freq: 0.001), European in 38 of 126368 chromosomes (freq: 0.0003), and South Asian in 1 of 30774 chromosomes (freq: 0.00003), while the variant was not observed in the Ashkenazi Jewish, East Asian, and Finnish, populations. The p.Arg1171 residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. -

Familial multiple polyposis syndrome

Benign:1

Jul 30, 2015

Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Gastric cancer;C0346629:Colorectal cancer;C1851124:Desmoid disease, hereditary;C2239176:Hepatocellular carcinoma;C2713442:Familial adenomatous polyposis 1;C4749917:Gastric adenocarcinoma and proximal polyposis of the stomach

Benign:1

Mar 25, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Classic or attenuated familial adenomatous polyposis

Benign:1

Sep 23, 2024

All of Us Research Program, National Institutes of Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.13

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.53

D;D;T

Eigen

Benign

-0.12

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

.;D;D

M_CAP

Benign

0.038

MetaRNN

Benign

0.042

T;T;T

MetaSVM

Benign

-0.59

MutationAssessor

Benign

0.0

N;N;.

PhyloP100

3.7

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-1.5

N;N;N

REVEL

Benign

0.26

Sift

Uncertain

0.011

D;D;D

Sift4G

Uncertain

0.048

D;D;T

Polyphen

0.092

B;B;.

Vest4

0.29

MVP

0.84

ClinPred

0.025

GERP RS

5.6

Varity_R

0.16

gMVP

0.57

Mutation Taster

=98/2

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over