rs1168951676

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_004655.4(AXIN2):​c.1297G>C​(p.Glu433Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000446 in 1,567,802 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E433D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

AXIN2
NM_004655.4 missense

Scores

3
10
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.37

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AXIN2NM_004655.4 linkc.1297G>C p.Glu433Gln missense_variant Exon 6 of 11 ENST00000307078.10 NP_004646.3 Q9Y2T1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AXIN2ENST00000307078.10 linkc.1297G>C p.Glu433Gln missense_variant Exon 6 of 11 1 NM_004655.4 ENSP00000302625.5 Q9Y2T1
AXIN2ENST00000375702.5 linkc.1297G>C p.Glu433Gln missense_variant Exon 5 of 9 1 ENSP00000364854.5 E7ES00
AXIN2ENST00000618960.4 linkc.1297G>C p.Glu433Gln missense_variant Exon 6 of 10 5 ENSP00000478916.1 E7ES00

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151982
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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
GnomAD2 exomes
AF:
0.00000573
AC:
1
AN:
174428
AF XY:
0.0000107
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:
0.0000141
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000424
AC:
6
AN:
1415820
Hom.:
0
Cov.:
37
AF XY:
0.00000571
AC XY:
4
AN XY:
700046
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32466
American (AMR)
AF:
0.00
AC:
0
AN:
37222
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25322
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37226
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81054
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49870
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5704
European-Non Finnish (NFE)
AF:
0.00000551
AC:
6
AN:
1088310
Other (OTH)
AF:
0.00
AC:
0
AN:
58646
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000658
AC:
1
AN:
151982
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74216
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000241
AC:
1
AN:
41424
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5070
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67974
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Oligodontia-cancer predisposition syndrome Uncertain:1
Sep 27, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

ClinVar contains an entry for this variant (Variation ID: 464535). This variant has not been reported in the literature in individuals affected with AXIN2-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces glutamic acid, which is acidic and polar, with glutamine, which is neutral and polar, at codon 433 of the AXIN2 protein (p.Glu433Gln). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on AXIN2 protein function. -

Hereditary cancer-predisposing syndrome Uncertain:1
Jul 15, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.E433Q variant (also known as c.1297G>C), located in coding exon 5 of the AXIN2 gene, results from a G to C substitution at nucleotide position 1297. The glutamic acid at codon 433 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Benign
-0.017
T
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
.;T;T
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
.;D;.
M_CAP
Pathogenic
0.49
D
MetaRNN
Uncertain
0.65
D;D;D
MetaSVM
Uncertain
-0.029
T
PhyloP100
7.4
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-1.9
N;.;N
REVEL
Uncertain
0.33
Sift
Uncertain
0.0050
D;.;D
Sift4G
Uncertain
0.038
D;D;D
Polyphen
0.97
.;D;D
Vest4
0.50
MutPred
0.52
Loss of phosphorylation at S430 (P = 0.1565);Loss of phosphorylation at S430 (P = 0.1565);Loss of phosphorylation at S430 (P = 0.1565);
MVP
0.82
MPC
0.66
ClinPred
0.86
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
gMVP
0.35
Mutation Taster
=43/57
disease causing

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

Other links and lift over

dbSNP: rs1168951676; hg19: chr17-63533857; API