rs781609463

Variant names:

• chr1-45340256-G-A
• rs781609463
• NM_025077.4:c.4G>A

Your query was ambiguous. Multiple possible variants found:

• chr1-45340256-G-A
• chr1-45340256-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_025077.4(TOE1):​c.4G>A​(p.Ala2Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,240 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A2G) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: TOE1 NM_025077.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.27
• Publications: 5 publications found

Genes affected

TOE1 (HGNC:15954): (target of EGR1, exonuclease) Enables poly(A)-specific ribonuclease activity and snRNA binding activity. Involved in RNA phosphodiester bond hydrolysis, exonucleolytic and snRNA 3'-end processing. Located in Cajal body and cytoplasm. Implicated in pontocerebellar hypoplasia type 7. [provided by Alliance of Genome Resources, Apr 2022]

MUTYH (HGNC:7527): (mutY DNA glycosylase) This gene encodes a DNA glycosylase involved in oxidative DNA damage repair. The enzyme excises adenine bases from the DNA backbone at sites where adenine is inappropriately paired with guanine, cytosine, or 8-oxo-7,8-dihydroguanine, a major oxidatively damaged DNA lesion. The protein is localized to the nucleus and mitochondria. This gene product is thought to play a role in signaling apoptosis by the introduction of single-strand breaks following oxidative damage. Mutations in this gene result in heritable predisposition to colorectal cancer, termed MUTYH-associated polyposis (MAP). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2017]

MUTYH Gene-Disease associations (from GenCC):

• familial adenomatous polyposis 2

  Inheritance: AR, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen, G2P, Orphanet
• colorectal cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• familial ovarian cancer

  Inheritance: AD, AR Classification: NO_KNOWN Submitted by: ClinGen
• hereditary breast carcinoma

  Inheritance: AR, AD Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000288208 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025077.4. 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
	TOE1	NM_025077.4	MANE Select	c.4G>A	p.Ala2Thr	missense	Exon 1 of 8	NP_079353.3
	MUTYH	NM_001128425.2	MANE Plus Clinical	c.-2C>T		5_prime_UTR	Exon 1 of 16	NP_001121897.1	E5KP25
	MUTYH	NM_012222.3		c.-2C>T		5_prime_UTR	Exon 1 of 16	NP_036354.1	Q9UIF7-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TOE1	ENST00000372090.6	TSL:1 MANE Select	c.4G>A	p.Ala2Thr	missense	Exon 1 of 8	ENSP00000361162.5	Q96GM8-1
	MUTYH	ENST00000710952.2	MANE Plus Clinical	c.-2C>T		5_prime_UTR	Exon 1 of 16	ENSP00000518552.2	E5KP25
	MUTYH	ENST00000372098.7	TSL:1	c.-2C>T		5_prime_UTR	Exon 1 of 16	ENSP00000361170.3	Q9UIF7-1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152240 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 33

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152240 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74374

African (AFR) AF: 0.0000241 AC: 1 AN: 41472

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68040

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Benign	-0.023	T
BayesDel_noAF	Benign	-0.27
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.0039	T
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.013	T
MetaRNN	Uncertain	0.58	D
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.9	L
PhyloP100		4.3
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-0.23	N
REVEL	Benign	0.17
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.99	D
Vest4		0.52
MutPred		0.065		Gain of glycosylation at A2 (P = 0.0055)
MVP		0.76
MPC		1.2
ClinPred		0.98	D
GERP RS		5.0
PromoterAI		-0.54	Under-expression
Varity_R		0.23
gMVP		0.46
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: rs781609463; hg19: chr1-45805928; COSMIC: COSV59152144; COSMIC: COSV59152144;