1-45332446-G-T

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM1PM2PM5PP3_StrongPP5

The NM_001048174.2(MUTYH):​c.649C>A​(p.Arg217Ser) variant causes a missense change involving the alteration of a 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 Lovd as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R217L) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)

Consequence

MUTYH
NM_001048174.2 missense

Scores

14
4
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.25
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 ACMG points.

PM1
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 16 uncertain in NM_001048174.2
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-45332446-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 41761.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.983
PP5
Variant 1-45332446-G-T is Pathogenic according to our data. Variant chr1-45332446-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MUTYHNM_001048174.2 linkc.649C>A p.Arg217Ser missense_variant Exon 9 of 16 ENST00000456914.7 NP_001041639.1 Q9UIF7-6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MUTYHENST00000456914.7 linkc.649C>A p.Arg217Ser missense_variant Exon 9 of 16 1 NM_001048174.2 ENSP00000407590.2 Q9UIF7-6
ENSG00000288208ENST00000671898.1 linkn.1237C>A non_coding_transcript_exon_variant Exon 13 of 21 ENSP00000499896.1 A0A5F9ZGZ0

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
36
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.56
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.65
.;.;.;.;.;D;.;.;.;T;.;D
Eigen
Pathogenic
0.72
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.97
.;D;.;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.50
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.7
.;.;.;.;.;H;.;.;.;.;.;.
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-5.6
D;D;D;D;D;D;D;D;D;D;D;D
REVEL
Pathogenic
0.94
Sift
Pathogenic
0.0
D;D;D;D;D;D;D;D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D;D;D;D;D;D;D
Polyphen
1.0, 1.0, 1.0
.;.;.;.;.;D;D;.;D;.;.;.
Vest4
0.98
MutPred
0.93
.;.;.;.;.;.;.;.;Loss of MoRF binding (P = 0.0289);.;.;.;
MVP
0.99
MPC
0.57
ClinPred
1.0
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.99
gMVP
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: chr1-45798118; API