NM_004655.4:c.802G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_004655.4(AXIN2):c.802G>A(p.Asp268Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000239 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 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. D268H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

AXIN2
NM_004655.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 7.45

Publications

2 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:

ENSG00000266076 (HGNC:):

ENSG00000266076 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.18882075).

BP6

Variant 17-65557819-C-T is Benign according to our data. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052. Variant chr17-65557819-C-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 418052.

BS2

High AC in GnomAdExome4 at 35 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AXIN2	NM_004655.4 link	c.802G>A	p.Asp268Asn	missense_variant	Exon 2 of 11	ENST00000307078.10	NP_004646.3	Q9Y2T1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AXIN2	ENST00000307078.10 link	c.802G>A	p.Asp268Asn	missense_variant	Exon 2 of 11	1	NM_004655.4	ENSP00000302625.5	Q9Y2T1
ENSG00000266076	ENST00000577662.1 link	n.*978G>A		non_coding_transcript_exon_variant	Exon 4 of 7	2		ENSP00000462418.1	J3KSC3
ENSG00000266076	ENST00000577662.1 link	n.*978G>A		3_prime_UTR_variant	Exon 4 of 7	2		ENSP00000462418.1	J3KSC3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251308

AF XY:

0.00000736

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000239

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000297

AC:

AN:

1112002

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

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:

0.0000312

Hom.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Oligodontia-cancer predisposition syndrome

Uncertain:1

Nov 05, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 268 of the AXIN2 protein (p.Asp268Asn). This variant is present in population databases (rs745659837, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with AXIN2-related conditions. ClinVar contains an entry for this variant (Variation ID: 418052). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt AXIN2 protein function with a negative predictive value of 80%. 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:1

Apr 14, 2023

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 29641532) -

Hereditary cancer-predisposing syndrome

Benign:1

Nov 18, 2023

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.24

.;T;T;T

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.19

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.85

.;D;.;T

M_CAP

Benign

0.071

MetaRNN

Benign

0.19

T;T;T;T

MetaSVM

Benign

-0.63

PhyloP100

7.5

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.74

N;.;N;.

REVEL

Uncertain

0.32

Sift

Benign

0.088

T;.;T;.

Sift4G

Benign

0.10

T;T;T;.

Polyphen

0.0020

.;B;B;.

Vest4

0.13

MutPred

0.21

Gain of MoRF binding (P = 0.0284);Gain of MoRF binding (P = 0.0284);Gain of MoRF binding (P = 0.0284);Gain of MoRF binding (P = 0.0284);

MVP

0.64

MPC

0.17

ClinPred

0.41

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.29

Mutation Taster

=84/16

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over