rs765845684

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP6

The NM_004655.4(AXIN2):c.2012G>C(p.Arg671Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. R671C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000019 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

AXIN2
NM_004655.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 7.38

Publications

3 publications found

Variant links:

Genes affected

AXIN2 (HGNC:904): (axin 2) The Axin-related protein, Axin2, presumably plays an important role in the regulation of the stability of beta-catenin in the Wnt signaling pathway, like its rodent homologs, mouse conductin/rat axil. In mouse, conductin organizes a multiprotein complex of APC (adenomatous polyposis of the colon), beta-catenin, glycogen synthase kinase 3-beta, and conductin, which leads to the degradation of beta-catenin. Apparently, the deregulation of beta-catenin is an important event in the genesis of a number of malignancies. The AXIN2 gene has been mapped to 17q23-q24, a region that shows frequent loss of heterozygosity in breast cancer, neuroblastoma, and other tumors. Mutations in this gene have been associated with colorectal cancer with defective mismatch repair. [provided by RefSeq, Jul 2008]

AXIN2 Gene-Disease associations (from GenCC):

oligodontia-cancer predisposition syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
tooth agenesis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
craniosynostosis
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

AXIN2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP6

Variant 17-65536449-C-G is Benign according to our data. Variant chr17-65536449-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 240006.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AXIN2	NM_004655.4 link	c.2012G>C	p.Arg671Pro	missense_variant	Exon 8 of 11	ENST00000307078.10	NP_004646.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
AXIN2	ENST00000307078.10 link	c.2012G>C	p.Arg671Pro	missense_variant	Exon 8 of 11	1	NM_004655.4	ENSP00000302625.5
AXIN2	ENST00000375702.5 link	c.1817G>C	p.Arg606Pro	missense_variant	Exon 6 of 9	1		ENSP00000364854.5
AXIN2	ENST00000618960.4 link	c.1817G>C	p.Arg606Pro	missense_variant	Exon 7 of 10	5		ENSP00000478916.1
AXIN2	ENST00000578251.1 link	n.234G>C		non_coding_transcript_exon_variant	Exon 1 of 3	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.000103

AC:

AN:

241746

AF XY:

0.0000759

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000672

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000336

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000192

AC:

AN:

1461274

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

726946

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33424

American (AMR)

AF:

0.000559

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53026

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111930

Other (OTH)

AF:

0.0000166

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.402

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.0000825

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Oligodontia-cancer predisposition syndrome

Uncertain:2

Apr 10, 2020

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 671 of the AXIN2 protein (p.Arg671Pro). This variant is present in population databases (rs765845684, gnomAD 0.06%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with colorectal cancer (PMID: 33359728). ClinVar contains an entry for this variant (Variation ID: 240006). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1Benign:1

Oct 31, 2023

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Observed in an individual with colorectal cancer in published literature (PMID: 33359728); This variant is associated with the following publications: (PMID: 15735151, 33359728) -

Sep 15, 2022

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome

Uncertain:1Benign:1

Oct 29, 2021

Sema4, Sema4

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:curation

- -

Apr 23, 2024

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.060

BayesDel_noAF

Pathogenic

0.21

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

.;T;T

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.81

.;T;.

M_CAP

Uncertain

0.12

MetaRNN

Uncertain

0.59

D;D;D

MetaSVM

Benign

-0.35

PhyloP100

7.4

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-0.95

N;.;N

REVEL

Uncertain

0.33

Sift

Benign

0.26

T;.;T

Sift4G

Benign

0.27

T;T;T

Polyphen

1.0

.;D;D

Vest4

0.82

MutPred

0.29

Loss of MoRF binding (P = 0.0018);.;.;

MVP

0.57

MPC

0.87

ClinPred

0.41

GERP RS

5.3

gMVP

0.40

Mutation Taster

=37/63

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over