rs762872515

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_004655.4(AXIN2):​c.2141G>C​(p.Arg714Pro) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000687 in 1,455,750 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

AXIN2
NM_004655.4 missense, splice_region

Scores

5
10
3
Splicing: ADA: 0.9999
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.78
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AXIN2NM_004655.4 linkc.2141G>C p.Arg714Pro missense_variant, splice_region_variant Exon 8 of 11 ENST00000307078.10 NP_004646.3 Q9Y2T1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AXIN2ENST00000307078.10 linkc.2141G>C p.Arg714Pro missense_variant, splice_region_variant Exon 8 of 11 1 NM_004655.4 ENSP00000302625.5 Q9Y2T1
AXIN2ENST00000375702.5 linkc.1946G>C p.Arg649Pro missense_variant, splice_region_variant Exon 6 of 9 1 ENSP00000364854.5 E7ES00
AXIN2ENST00000618960.4 linkc.1946G>C p.Arg649Pro missense_variant, splice_region_variant Exon 7 of 10 5 ENSP00000478916.1 E7ES00
AXIN2ENST00000578251.1 linkn.363G>C splice_region_variant, non_coding_transcript_exon_variant Exon 1 of 3 3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.87e-7
AC:
1
AN:
1455750
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
723700
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.0000166
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1
Feb 21, 2025
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R714P variant (also known as c.2141G>C), located in coding exon 7 of the AXIN2 gene, results from a G to C substitution at nucleotide position 2141. The amino acid change results in arginine to proline at codon 714, an amino acid with dissimilar properties. However, this change occurs in the last base pair of coding exon 7, which makes it likely to have some effect on normal mRNA splicing. This nucleotide position is highly conserved in available vertebrate species. In silico splice site analysis for this alteration is inconclusive. This amino acid position is highly conserved in available vertebrate species. In addition, as a missense substitution, the in silico analysis is inconclusive. 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
0.31
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Uncertain
0.070
CADD
Pathogenic
34
DANN
Uncertain
0.99
DEOGEN2
Benign
0.35
.;T;T
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
.;D;.
M_CAP
Pathogenic
0.35
D
MetaRNN
Uncertain
0.59
D;D;D
MetaSVM
Uncertain
-0.021
T
PrimateAI
Uncertain
0.56
T
PROVEAN
Uncertain
-2.6
D;.;D
REVEL
Uncertain
0.38
Sift
Uncertain
0.0050
D;.;D
Sift4G
Uncertain
0.045
D;D;D
Polyphen
1.0
.;D;D
Vest4
0.67
MutPred
0.28
Loss of helix (P = 0.0041);.;.;
MVP
0.66
MPC
0.87
ClinPred
0.98
D
GERP RS
5.5
gMVP
0.56

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.98
SpliceAI score (max)
0.10
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-63532438; API