rs768352721

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004655.4(AXIN2):​c.2258T>G​(p.Leu753Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

AXIN2
NM_004655.4 missense

Scores

3
15

Clinical Significance

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

Conservation

PhyloP100: 2.06
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.11247334).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AXIN2NM_004655.4 linkc.2258T>G p.Leu753Arg missense_variant Exon 10 of 11 ENST00000307078.10 NP_004646.3 Q9Y2T1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AXIN2ENST00000307078.10 linkc.2258T>G p.Leu753Arg missense_variant Exon 10 of 11 1 NM_004655.4 ENSP00000302625.5 Q9Y2T1
AXIN2ENST00000375702.5 linkc.2063T>G p.Leu688Arg missense_variant Exon 8 of 9 1 ENSP00000364854.5 E7ES00
AXIN2ENST00000618960.4 linkc.2063T>G p.Leu688Arg missense_variant Exon 9 of 10 5 ENSP00000478916.1 E7ES00
AXIN2ENST00000578251.1 linkn.480T>G non_coding_transcript_exon_variant Exon 3 of 3 3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251492
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461886
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

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
Nov 02, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant has not been reported in the literature in individuals affected with AXIN2-related conditions. 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. 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. ClinVar contains an entry for this variant (Variation ID: 464602). This variant is present in population databases (rs768352721, gnomAD 0.006%). This sequence change replaces leucine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 753 of the AXIN2 protein (p.Leu753Arg). -

Hereditary cancer-predisposing syndrome Uncertain:1
Apr 19, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.L753R variant (also known as c.2258T>G), located in coding exon 9 of the AXIN2 gene, results from a T to G substitution at nucleotide position 2258. The leucine at codon 753 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.24
.;T;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.18
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Benign
0.73
.;T;.
M_CAP
Benign
0.037
D
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-0.89
T
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.26
N;.;N
REVEL
Benign
0.20
Sift
Benign
0.59
T;.;T
Sift4G
Benign
0.60
T;T;T
Polyphen
0.61
.;P;P
Vest4
0.37
MutPred
0.33
Gain of disorder (P = 0.0434);.;.;
MVP
0.57
MPC
0.26
ClinPred
0.084
T
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
gMVP
0.26

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs768352721; hg19: chr17-63530177; API