17-65530008-G-C

Variant names:

• chr17-65530008-G-C
• rs878854728
• NM_004655.4:c.2500C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_004655.4(AXIN2):​c.2500C>G​(p.Arg834Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 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. R834Q) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: AXIN2 NM_004655.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 3.46
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.914

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.2500C>G	p.Arg834Gly	missense	Exon 11 of 11	NP_004646.3	Q9Y2T1
	AXIN2	NM_001363813.1		c.2305C>G	p.Arg769Gly	missense	Exon 10 of 10	NP_001350742.1	E7ES00

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AXIN2	ENST00000307078.10	TSL:1 MANE Select	c.2500C>G	p.Arg834Gly	missense	Exon 11 of 11	ENSP00000302625.5	Q9Y2T1
	AXIN2	ENST00000375702.5	TSL:1	c.2305C>G	p.Arg769Gly	missense	Exon 9 of 9	ENSP00000364854.5	E7ES00
	AXIN2	ENST00000881031.1		c.2500C>G	p.Arg834Gly	missense	Exon 11 of 11	ENSP00000551090.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Hereditary cancer-predisposing syndrome (1)
-	1	-	Oligodontia-cancer predisposition syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.67
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.070
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	T
Eigen	Benign	0.10
Eigen_PC	Benign	0.044
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.078	D
MetaRNN	Pathogenic	0.91	D
MetaSVM	Benign	-0.63	T
PhyloP100		3.5
PrimateAI	Uncertain	0.54	T
PROVEAN	Uncertain	-3.9	D
REVEL	Uncertain	0.42
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0020	D
Polyphen		0.97	D
Vest4		0.71
MutPred		0.81		Loss of MoRF binding (P = 0.0611)
MVP		0.61
MPC		0.65
ClinPred		0.98	D
GERP RS		2.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
gMVP		0.88
Mutation Taster		=74/26	polymorphism

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

Other links and lift over

dbSNP: rs878854728; hg19: chr17-63526126;