17-65536440-G-T

Variant names:

• chr17-65536440-G-T
• NM_004655.4:c.2021C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004655.4(AXIN2):​c.2021C>A​(p.Pro674His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,455,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: AXIN2 NM_004655.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.45

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.22172102).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AXIN2	NM_004655.4	c.2021C>A	p.Pro674His	missense_variant	Exon 8 of 11	ENST00000307078.10	NP_004646.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AXIN2	ENST00000307078.10	c.2021C>A	p.Pro674His	missense_variant	Exon 8 of 11	1	NM_004655.4	ENSP00000302625.5
AXIN2	ENST00000375702.5	c.1826C>A	p.Pro609His	missense_variant	Exon 6 of 9	1		ENSP00000364854.5
AXIN2	ENST00000618960.4	c.1826C>A	p.Pro609His	missense_variant	Exon 7 of 10	5		ENSP00000478916.1
AXIN2	ENST00000578251.1	n.243C>A		non_coding_transcript_exon_variant	Exon 1 of 3	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.87e-7 AC: 1 AN: 1455156 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 724338

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.087	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.30	.;T;T
Eigen	Benign	-0.16
Eigen_PC	Benign	0.037
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.69	.;T;.
M_CAP	Benign	0.039	D
MetaRNN	Benign	0.22	T;T;T
MetaSVM	Benign	-1.0	T
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.75	N;.;N
REVEL	Benign	0.037
Sift	Uncertain	0.0020	D;.;D
Sift4G	Benign	0.064	T;D;D
Polyphen		0.0	.;B;B
Vest4		0.39
MutPred		0.26		Loss of methylation at R675 (P = 0.06);.;.;
MVP		0.56
MPC		0.20
ClinPred		0.33	T
GERP RS		4.2
gMVP		0.15

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-63532558;