Genetic Variant MUTYH:p.Ser324* (chr1-45332049-G-T) – ACMG Classification: Pathogenic (12 pts)

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_001048174.2(MUTYH):c.887C>A(p.Ser296*) variant causes a stop gained 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 Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. S296S) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)

Consequence

MUTYH
NM_001048174.2 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.238

Publications

9 publications found

Variant links:

Genes affected

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

MUTYH links:

ENSG00000288208 (HGNC:):

ENSG00000288208 links:

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ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 1-45332049-G-T is Pathogenic according to our data. Variant chr1-45332049-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 569689.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001048174.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MUTYH	NM_001128425.2	MANE Plus Clinical	c.971C>A	p.Ser324*	stop_gained	Exon 11 of 16	NP_001121897.1	E5KP25
MUTYH	NM_001048174.2	MANE Select	c.887C>A	p.Ser296*	stop_gained	Exon 11 of 16	NP_001041639.1	Q9UIF7-6
MUTYH	NM_012222.3		c.962C>A	p.Ser321*	stop_gained	Exon 11 of 16	NP_036354.1	Q9UIF7-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MUTYH	ENST00000710952.2	MANE Plus Clinical	c.971C>A	p.Ser324*	stop_gained	Exon 11 of 16	ENSP00000518552.2	E5KP25
MUTYH	ENST00000456914.7	TSL:1 MANE Select	c.887C>A	p.Ser296*	stop_gained	Exon 11 of 16	ENSP00000407590.2	Q9UIF7-6
MUTYH	ENST00000372098.7	TSL:1	c.962C>A	p.Ser321*	stop_gained	Exon 11 of 16	ENSP00000361170.3	Q9UIF7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Familial adenomatous polyposis 2 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Pathogenic

(source)

DANN

Benign

0.92

Eigen

Benign

-0.10

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.18

PhyloP100

0.24

Vest4

0.72

GERP RS

-1.1

PromoterAI

-0.032

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=0/200

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.23

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.23

Position offset: -26

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