Genetic Variant AXIN2:p.Arg354Lys (chr17-65538342-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_004655.4(AXIN2):c.1061G>A(p.Arg354Lys) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R354G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)

Consequence

AXIN2
NM_004655.4 missense, splice_region

Scores

Splicing: ADA: 0.9846

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 7.08

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: Ambry Genetics, ClinGen, 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 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AXIN2	NM_004655.4	MANE Select	c.1061G>A	p.Arg354Lys	missense splice_region	Exon 5 of 11	NP_004646.3	Q9Y2T1
	AXIN2	NM_001363813.1		c.1061G>A	p.Arg354Lys	missense splice_region	Exon 5 of 10	NP_001350742.1	E7ES00

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AXIN2	ENST00000307078.10	TSL:1 MANE Select	c.1061G>A	p.Arg354Lys	missense splice_region	Exon 5 of 11	ENSP00000302625.5	Q9Y2T1
AXIN2	ENST00000375702.5	TSL:1	c.1061G>A	p.Arg354Lys	missense splice_region	Exon 4 of 9	ENSP00000364854.5	E7ES00
ENSG00000266076	ENST00000577662.1	TSL:2	n.*1237G>A		splice_region non_coding_transcript_exon	Exon 7 of 7	ENSP00000462418.1	J3KSC3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Colorectal cancer (1)

Hereditary cancer-predisposing syndrome (1)

not provided (1)

Oligodontia-cancer predisposition syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.54

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.58

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.87

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.80

MetaSVM

Uncertain

0.15

PhyloP100

7.1

PrimateAI

Uncertain

0.78

PROVEAN

Uncertain

-2.5

REVEL

Pathogenic

0.67

Sift

Uncertain

0.0090

Sift4G

Uncertain

0.019

Polyphen

0.028

Vest4

0.86

MutPred

0.38

Gain of methylation at R354 (P = 0.0123)

MVP

0.66

MPC

0.20

ClinPred

0.95

GERP RS

5.3

gMVP

0.62

Mutation Taster

=25/75

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.98

dbscSNV1_RF

Pathogenic

0.87

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