rs730881400

chr17-65536485-C-Achr17-65536485-C-Gchr17-65536485-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004655.4(AXIN2):c.1976G>T(p.Arg659Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,454 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R659Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: AXIN2 NM_004655.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.74

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AXIN2	NM_004655.4	c.1976G>T	p.Arg659Leu	missense_variant	8/11	ENST00000307078.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AXIN2	ENST00000307078.10	c.1976G>T	p.Arg659Leu	missense_variant	8/11	1	NM_004655.4	P1
AXIN2	ENST00000375702.5	c.1781G>T	p.Arg594Leu	missense_variant	6/9	1
AXIN2	ENST00000618960.4	c.1781G>T	p.Arg594Leu	missense_variant	7/10	5
AXIN2	ENST00000578251.1	n.198G>T		non_coding_transcript_exon_variant	1/3	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461454 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 727016

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.020
Cadd	Benign	21
Dann	Uncertain	1.0
Eigen	Uncertain	0.31
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Uncertain	0.94	D
M_CAP	Benign	0.057	D
MetaRNN	Uncertain	0.49	T;T;T
MetaSVM	Benign	-0.66	T
MutationTaster	Benign	0.99	D;N
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-1.2	N;.;N
REVEL	Benign	0.12
Sift	Benign	0.29	T;.;D
Sift4G	Benign	0.22	T;D;D
Polyphen		0.97	.;D;D
Vest4		0.76
MutPred		0.30		Loss of solvent accessibility (P = 0.0022);.;.;
MVP		0.46
MPC		0.41
ClinPred		0.83	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
gMVP		0.48

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

Other links and lift over

dbSNP: rs730881400; hg19: chr17-63532603;