Genetic Variant AXIN1:p.Arg803Leu (chr16-289494-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_003502.4(AXIN1):c.2408G>T(p.Arg803Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 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. R803H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

AXIN1
NM_003502.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.83

Publications

0 publications found

Variant links:

Genes affected

AXIN1 (HGNC:903): (axin 1) This gene encodes a cytoplasmic protein which contains a regulation of G-protein signaling (RGS) domain and a dishevelled and axin (DIX) domain. The encoded protein interacts with adenomatosis polyposis coli, catenin beta-1, glycogen synthase kinase 3 beta, protein phosphate 2, and itself. This protein functions as a negative regulator of the wingless-type MMTV integration site family, member 1 (WNT) signaling pathway and can induce apoptosis. The crystal structure of a portion of this protein, alone and in a complex with other proteins, has been resolved. Mutations in this gene have been associated with hepatocellular carcinoma, hepatoblastomas, ovarian endometriod adenocarcinomas, and medullablastomas. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

AXIN1 Gene-Disease associations (from GenCC):

caudal duplication
Inheritance: AD Classification: LIMITED Submitted by: G2P
colorectal adenoma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

AXIN1 links:

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ACMG classification

Classification was made for transcript

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, 0.906

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003502.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AXIN1	NM_003502.4	MANE Select	c.2408G>T	p.Arg803Leu	missense	Exon 10 of 11	NP_003493.1	A0A0S2Z4R0
AXIN1	NM_181050.3		c.2300G>T	p.Arg767Leu	missense	Exon 9 of 10	NP_851393.1	O15169-2
AXIN1	NR_134879.2		n.2639G>T		non_coding_transcript_exon	Exon 8 of 9

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AXIN1	ENST00000262320.8	TSL:1 MANE Select	c.2408G>T	p.Arg803Leu	missense	Exon 10 of 11	ENSP00000262320.3	O15169-1
AXIN1	ENST00000354866.7	TSL:1	c.2300G>T	p.Arg767Leu	missense	Exon 9 of 10	ENSP00000346935.3	O15169-2
AXIN1	ENST00000957925.1		c.2423G>T	p.Arg808Leu	missense	Exon 10 of 11	ENSP00000627984.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.020

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.68

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

0.98

M_CAP

Uncertain

0.18

MetaRNN

Pathogenic

0.91

MetaSVM

Benign

-0.57

MutationAssessor

Benign

2.0

PhyloP100

4.8

PrimateAI

Uncertain

0.73

PROVEAN

Uncertain

-3.8

REVEL

Uncertain

0.36

Sift

Uncertain

0.020

Sift4G

Uncertain

0.051

Polyphen

1.0

Vest4

0.81

MutPred

0.71

Loss of methylation at R803 (P = 0.0414)

MVP

0.57

MPC

0.61

ClinPred

0.99

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.88

gMVP

0.71

Mutation Taster

=43/57

disease causing

(source)

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

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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