rs878854718

Positions:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004655.4(AXIN2):c.1264C>T(p.Pro422Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000488 in 1,434,404 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 0.0000049 ( 1 hom. )

Consequence

AXIN2
NM_004655.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 3.43

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.15405285).

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AXIN2	NM_004655.4 linkuse as main transcript	c.1264C>T	p.Pro422Ser	missense_variant	6/11	ENST00000307078.10	NP_004646.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
AXIN2	ENST00000307078.10 linkuse as main transcript	c.1264C>T	p.Pro422Ser	missense_variant	6/11	1	NM_004655.4	ENSP00000302625	P1
AXIN2	ENST00000375702.5 linkuse as main transcript	c.1264C>T	p.Pro422Ser	missense_variant	5/9	1		ENSP00000364854
AXIN2	ENST00000618960.4 linkuse as main transcript	c.1264C>T	p.Pro422Ser	missense_variant	6/10	5		ENSP00000478916

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000999

AC:

AN:

200134

Hom.:

AF XY:

0.00

AC XY:

AN XY:

108450

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000234

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000488

AC:

AN:

1434404

Hom.:

Cov.:

AF XY:

0.00000422

AC XY:

AN XY:

710744

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:

0.0000121

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000546

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000601

Hom.:

Bravo

AF:

0.00000378

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

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 27, 2023

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 422 of the AXIN2 protein (p.Pro422Ser). 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 variant has not been reported in the literature in individuals affected with AXIN2-related conditions. ClinVar contains an entry for this variant (Variation ID: 239979). 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) performed at Invitae 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. -

Hereditary cancer-predisposing syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 07, 2022

The p.P422S variant (also known as c.1264C>T), located in coding exon 5 of the AXIN2 gene, results from a C to T substitution at nucleotide position 1264. The proline at codon 422 is replaced by serine, an amino acid with similar properties. This amino acid position is well 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

0.078

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Benign

0.91

DEOGEN2

Benign

0.29

.;T;T

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.64

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.79

.;T;.

M_CAP

Uncertain

0.23

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-0.87

MutationTaster

Benign

0.64

D;D

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.89

N;.;N

REVEL

Benign

0.25

Sift

Benign

0.20

T;.;T

Sift4G

Benign

0.12

T;T;T

Polyphen

0.016

.;B;B

Vest4

0.25

MutPred

0.10

Gain of phosphorylation at P422 (P = 0.0213);Gain of phosphorylation at P422 (P = 0.0213);Gain of phosphorylation at P422 (P = 0.0213);

MVP

0.49

MPC

0.19

ClinPred

0.074

GERP RS

1.7

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over