rs148419444

Variant summary

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

The NM_004655.4(AXIN2):c.1948C>T(p.Arg650Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000359 in 1,613,740 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts 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. R650H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000028 ( 1 hom. )

Consequence

AXIN2
NM_004655.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 2.46

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=0.14327452).

BS2

High AC in GnomAd at 17 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AXIN2	NM_004655.4 linkuse as main transcript	c.1948C>T	p.Arg650Cys	missense_variant	8/11	ENST00000307078.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
AXIN2	ENST00000307078.10 linkuse as main transcript	c.1948C>T	p.Arg650Cys	missense_variant	8/11	1	NM_004655.4	P1
AXIN2	ENST00000375702.5 linkuse as main transcript	c.1753C>T	p.Arg585Cys	missense_variant	6/9	1
AXIN2	ENST00000618960.4 linkuse as main transcript	c.1753C>T	p.Arg585Cys	missense_variant	7/10	5
AXIN2	ENST00000578251.1 linkuse as main transcript	n.170C>T		non_coding_transcript_exon_variant	1/3	3

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152248

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000578

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000734

AC:

AN:

245366

Hom.:

AF XY:

0.0000601

AC XY:

AN XY:

133216

show subpopulations

Gnomad AFR exome

AF:

0.000564

Gnomad AMR exome

AF:

0.0000869

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad SAS exome

AF:

0.0000982

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000185

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000281

AC:

AN:

1461492

Hom.:

Cov.:

AF XY:

0.0000330

AC XY:

AN XY:

727024

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000927

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000108

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000112

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74384

show subpopulations

Gnomad4 AFR

AF:

0.000314

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000487

Hom.:

Bravo

AF:

0.000140

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:2

Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Jul 27, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	May 30, 2023	The p.R650C variant (also known as c.1948C>T), located in coding exon 7 of the AXIN2 gene, results from a C to T substitution at nucleotide position 1948. The arginine at codon 650 is replaced by cysteine, an amino acid with highly dissimilar 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. -

Oligodontia-cancer predisposition syndrome

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Sep 11, 2020	This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 17, 2024	- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jul 18, 2023

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; This variant is associated with the following publications: (PMID: 15735151) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.24

Cadd

Uncertain

Dann

Uncertain

1.0

Eigen

Benign

-0.087

Eigen_PC

Benign

0.015

FATHMM_MKL

Uncertain

0.81

M_CAP

Pathogenic

0.32

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-0.73

MutationTaster

Benign

0.99

D;N

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.8

D;.;D

REVEL

Benign

0.16

Sift

Uncertain

0.025

D;.;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

0.0090

.;B;B

Vest4

0.40

MVP

0.42

MPC

0.25

ClinPred

0.26

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.36

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.

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