Genetic Variant NM_004655.4:c.2253G>T (chr17-65534064-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_004655.4(AXIN2):c.2253G>T(p.Lys751Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K751E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

AXIN2
NM_004655.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.06

Publications

0 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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

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.2253G>T	p.Lys751Asn	missense	Exon 10 of 11	NP_004646.3
	AXIN2	NM_001363813.1		c.2058G>T	p.Lys686Asn	missense	Exon 9 of 10	NP_001350742.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
AXIN2	ENST00000307078.10	TSL:1 MANE Select	c.2253G>T	p.Lys751Asn	missense	Exon 10 of 11	ENSP00000302625.5
AXIN2	ENST00000375702.5	TSL:1	c.2058G>T	p.Lys686Asn	missense	Exon 8 of 9	ENSP00000364854.5
AXIN2	ENST00000618960.4	TSL:5	c.2058G>T	p.Lys686Asn	missense	Exon 9 of 10	ENSP00000478916.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251484

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.42

BayesDel_addAF

Benign

-0.035

BayesDel_noAF

Benign

-0.29

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.86

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.44

MetaSVM

Uncertain

-0.14

PhyloP100

3.1

PrimateAI

Uncertain

0.54

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.17

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0070

Polyphen

0.99

Vest4

0.47

MutPred

0.28

Loss of methylation at K751 (P = 0.0096)

MVP

0.81

MPC

0.73

ClinPred

0.83

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

gMVP

0.43

Mutation Taster

=69/31

polymorphism

(source)

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

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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