Genetic Variant AXIN2:p.Asp20Asn (chr17-65558563-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004655.4(AXIN2):c.58G>A(p.Asp20Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D20H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

AXIN2
NM_004655.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.43

Publications

2 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

AXIN2 links:

ENSG00000266076 (HGNC:):

ENSG00000266076 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.40514022).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004655.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AXIN2	NM_004655.4	MANE Select	c.58G>A	p.Asp20Asn	missense	Exon 2 of 11	NP_004646.3
	AXIN2	NM_001363813.1		c.58G>A	p.Asp20Asn	missense	Exon 2 of 10	NP_001350742.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
AXIN2	ENST00000307078.10	TSL:1 MANE Select	c.58G>A	p.Asp20Asn	missense	Exon 2 of 11	ENSP00000302625.5
AXIN2	ENST00000375702.5	TSL:1	c.58G>A	p.Asp20Asn	missense	Exon 1 of 9	ENSP00000364854.5
ENSG00000266076	ENST00000577662.1	TSL:2	n.*234G>A		non_coding_transcript_exon	Exon 4 of 7	ENSP00000462418.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.0029

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.46

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

1.0

M_CAP

Uncertain

0.12

MetaRNN

Benign

0.41

MetaSVM

Uncertain

0.35

PhyloP100

7.4

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.5

REVEL

Uncertain

0.38

Sift

Uncertain

0.0080

Sift4G

Uncertain

0.011

Polyphen

1.0

Vest4

0.59

MutPred

0.12

Gain of methylation at R23 (P = 0.0768)

MVP

0.68

MPC

0.71

ClinPred

0.94

GERP RS

4.7

PromoterAI

0.021

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.50

Mutation Taster

=56/44

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over