rs1555578122

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_004655.4(AXIN2):​c.1225C>T​(p.Leu409Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/20 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. L409V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

AXIN2
NM_004655.4 missense

Scores

1
1
16

Clinical Significance

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

Conservation

PhyloP100: 0.628

Publications

0 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 -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15722382).
BP6
Variant 17-65537811-G-A is Benign according to our data. Variant chr17-65537811-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 964086.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AXIN2NM_004655.4 linkc.1225C>T p.Leu409Phe 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.1225C>T p.Leu409Phe missense_variant Exon 6 of 11 1 NM_004655.4 ENSP00000302625.5 Q9Y2T1
AXIN2ENST00000375702.5 linkc.1225C>T p.Leu409Phe missense_variant Exon 5 of 9 1 ENSP00000364854.5 E7ES00
AXIN2ENST00000618960.4 linkc.1225C>T p.Leu409Phe missense_variant Exon 6 of 10 5 ENSP00000478916.1 E7ES00

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1422954
Hom.:
0
Cov.:
36
AF XY:
0.00
AC XY:
0
AN XY:
704052
African (AFR)
AF:
0.00
AC:
0
AN:
32286
American (AMR)
AF:
0.00
AC:
0
AN:
38620
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24202
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38744
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80142
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51132
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5624
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1093600
Other (OTH)
AF:
0.00
AC:
0
AN:
58604
GnomAD4 genome
Cov.:
34

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Oligodontia-cancer predisposition syndrome Uncertain:1
Sep 24, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. This sequence change replaces leucine with phenylalanine at codon 409 of the AXIN2 protein (p.Leu409Phe). The leucine residue is moderately conserved and there is a small physicochemical difference between leucine and phenylalanine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with AXIN2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. -

Hereditary cancer-predisposing syndrome Benign:1
Dec 31, 2024
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
0.075
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
16
DANN
Benign
0.71
DEOGEN2
Benign
0.31
.;T;T
Eigen
Benign
-0.72
Eigen_PC
Benign
-0.59
FATHMM_MKL
Benign
0.47
N
LIST_S2
Benign
0.71
.;T;.
M_CAP
Pathogenic
0.41
D
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Benign
-0.78
T
PhyloP100
0.63
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-1.5
N;.;N
REVEL
Benign
0.16
Sift
Benign
0.25
T;.;T
Sift4G
Benign
0.13
T;T;T
Polyphen
0.028
.;B;B
Vest4
0.29
MutPred
0.15
Loss of catalytic residue at L409 (P = 0.0765);Loss of catalytic residue at L409 (P = 0.0765);Loss of catalytic residue at L409 (P = 0.0765);
MVP
0.63
MPC
0.22
ClinPred
0.090
T
GERP RS
3.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
gMVP
0.11
Mutation Taster
=95/5
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: rs1555578122; hg19: chr17-63533929; COSMIC: COSV61060966; COSMIC: COSV61060966; API