rs112610898

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_000038.6(APC):c.5690A>C(p.His1897Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000651 in 1,613,990 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign 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. H1897D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

APC
NM_000038.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:10

Conservation

PhyloP100: 3.29

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 -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.05950129).

BP6

Variant 5-112841284-A-C is Benign according to our data. Variant chr5-112841284-A-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 141931.We mark this variant Likely_benign, oryginal submissions are: {Benign=3, Likely_benign=7, Uncertain_significance=3}.

BS2

High AC in GnomAd at 54 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
APC	NM_000038.6 linkuse as main transcript	c.5690A>C	p.His1897Pro	missense_variant	16/16	ENST00000257430.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APC	ENST00000257430.9 linkuse as main transcript	c.5690A>C	p.His1897Pro	missense_variant	16/16	5	NM_000038.6	P1	P25054-1

Frequencies

GnomAD3 genomes

AF:

0.000355

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00123

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000518

AC:

AN:

250934

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135622

show subpopulations

Gnomad AFR exome

AF:

0.000677

Gnomad AMR exome

AF:

0.0000579

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000349

AC:

AN:

1461674

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

727142

show subpopulations

Gnomad4 AFR exome

AF:

0.00123

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000355

AC:

AN:

152316

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00123

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000133

Hom.:

Bravo

AF:

0.000404

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:10

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial adenomatous polyposis 1

Uncertain:2Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Feb 17, 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	Laboratorio de Genetica e Diagnostico Molecular, Hospital Israelita Albert Einstein	May 11, 2021	ACMG classification criteria: BP4 supporting -
Uncertain significance, criteria provided, single submitter	clinical testing	Counsyl	Jun 30, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Mendelics	Aug 22, 2023	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -

not provided

Uncertain:1Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 25, 2016	Variant summary: The APC c.5690A>C (p.His1897Pro) variant involves the alteration of a conserved nucleotide. It is not present in a known domain till date. 3/4 in silico tools predict a benign outcome (SNPs&GO not captured due to low reliability index). This variant was found in 10/120962 control chromosomes, predominantly observed in the African subpopulation at a frequency of 0.0008699 (9/10346). This frequency is about 12 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 African origin. Multiple clinical diagnostic laboratories have classified this variant as uncertain significance without evidence to independently evaluate. The variant of interest has been reported in one subject with suspected Lynch syndrome who also carried MSH2 c.1511-1G>A and BRIP1 p.His478Arg, supporting for the benign outcome (Yurgelun_2015). Taken together, this variant is currently classified as Likely Benign. -
Benign, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Oct 30, 2017	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Oct 16, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	May 26, 2020	This variant is associated with the following publications: (PMID: 25980754) -

Hereditary cancer-predisposing syndrome

Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Jan 09, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Jan 15, 2021	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	curation	Sema4, Sema4	Nov 01, 2021	- -

APC-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 06, 2021

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

0.074

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.16

Cadd

Benign

Dann

Benign

0.76

DEOGEN2

Benign

0.39

T;T

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.53

FATHMM_MKL

Uncertain

0.79

M_CAP

Benign

0.063

MetaRNN

Benign

0.060

T;T

MetaSVM

Benign

-0.68

MutationAssessor

Benign

1.5

L;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

1.0

N;N

REVEL

Benign

0.22

Sift

Benign

0.11

T;T

Sift4G

Benign

0.18

T;T

Polyphen

0.10

B;B

Vest4

0.33

MVP

0.80

ClinPred

0.019

GERP RS

3.6

Varity_R

0.070

gMVP

0.25

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