rs769064498

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004655.4(AXIN2):​c.211C>T​(p.Pro71Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,603,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. P71A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

AXIN2
NM_004655.4 missense

Scores

1
3
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 8.00

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

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;
BP4
Computational evidence support a benign effect (MetaRNN=0.33796287).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AXIN2NM_004655.4 linkc.211C>T p.Pro71Ser missense_variant Exon 2 of 11 ENST00000307078.10 NP_004646.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AXIN2ENST00000307078.10 linkc.211C>T p.Pro71Ser missense_variant Exon 2 of 11 1 NM_004655.4 ENSP00000302625.5
ENSG00000266076ENST00000577662.1 linkn.*387C>T non_coding_transcript_exon_variant Exon 4 of 7 2 ENSP00000462418.1
ENSG00000266076ENST00000577662.1 linkn.*387C>T 3_prime_UTR_variant Exon 4 of 7 2 ENSP00000462418.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152206
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1451024
Hom.:
0
Cov.:
31
AF XY:
0.00000139
AC XY:
1
AN XY:
720120
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33194
American (AMR)
AF:
0.00
AC:
0
AN:
44264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25478
East Asian (EAS)
AF:
0.0000253
AC:
1
AN:
39496
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85200
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53108
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5702
European-Non Finnish (NFE)
AF:
9.05e-7
AC:
1
AN:
1104740
Other (OTH)
AF:
0.00
AC:
0
AN:
59842
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
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

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:
0.0000131
AC:
2
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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:
0.0000286
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Oligodontia-cancer predisposition syndrome Uncertain:1
Sep 04, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 71 of the AXIN2 protein (p.Pro71Ser). This variant is present in population databases (rs769064498, gnomAD 0.007%). 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: 1393425). 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.

Colorectal cancer;C1837750:Oligodontia-cancer predisposition syndrome Uncertain:1
Jan 22, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Colorectal cancer Uncertain:1
Jan 22, 2024
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Uncertain:1
Jul 03, 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 has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

Hereditary cancer-predisposing syndrome Uncertain:1
Oct 28, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.P71S variant (also known as c.211C>T), located in coding exon 1 of the AXIN2 gene, results from a C to T substitution at nucleotide position 211. The proline at codon 71 is replaced by serine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. 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
Benign
0.25
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Uncertain
25
DANN
Benign
0.96
DEOGEN2
Benign
0.0
.;.;T;T;T;.;.;.
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.19
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.0
.;D;D;.;D;D;D;D
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.34
T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
.;.;.;.;.;.;.;.
PhyloP100
8.0
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-5.4
D;.;.;D;.;.;.;D
REVEL
Benign
0.20
Sift
Benign
0.042
D;.;.;D;.;.;.;T
Sift4G
Uncertain
0.011
D;D;D;D;.;.;.;.
Vest4
0.29
ClinPred
0.96
D
GERP RS
3.8
PromoterAI
0.011
Neutral
gMVP
0.66
Mutation Taster
=69/31
polymorphism

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: rs769064498; hg19: chr17-63554528; COSMIC: COSV100195748; API