rs200844166

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_001048174.2(MUTYH):​c.1334C>A​(p.Ala445Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,614,130 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A445T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

MUTYH
NM_001048174.2 missense

Scores

3
7
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.56
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.922
PP5
Variant 1-45331240-G-T is Pathogenic according to our data. Variant chr1-45331240-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MUTYHNM_001128425.2 linkuse as main transcriptc.1418C>A p.Ala473Asp missense_variant 14/16 ENST00000710952.2
MUTYHNM_001048174.2 linkuse as main transcriptc.1334C>A p.Ala445Asp missense_variant 14/16 ENST00000456914.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MUTYHENST00000710952.2 linkuse as main transcriptc.1418C>A p.Ala473Asp missense_variant 14/16 NM_001128425.2
MUTYHENST00000456914.7 linkuse as main transcriptc.1334C>A p.Ala445Asp missense_variant 14/161 NM_001048174.2 A1Q9UIF7-6

Frequencies

GnomAD3 genomes
AF:
0.0000525
AC:
8
AN:
152244
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000753
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251492
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000277
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461886
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727240
show subpopulations
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:
0.000187
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.0000941
AC XY:
7
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000753
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00000629
Hom.:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.50
BayesDel_addAF
Pathogenic
0.43
D
BayesDel_noAF
Pathogenic
0.38
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.41
.;.;.;.;.;.;T;.;.;.;.;T
Eigen
Benign
0.085
Eigen_PC
Benign
0.049
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.87
.;.;D;.;D;D;D;D;D;D;D;D
M_CAP
Benign
0.081
D
MetaRNN
Pathogenic
0.92
D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.38
T
MutationAssessor
Uncertain
2.6
.;.;.;.;.;.;M;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D;D;D;D;D;D
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.9
N;N;N;N;N;N;N;N;N;N;N;.
REVEL
Uncertain
0.62
Sift
Benign
0.044
D;T;T;T;T;T;T;T;T;D;T;.
Sift4G
Uncertain
0.0060
D;T;T;T;T;T;T;T;T;D;T;T
Polyphen
0.78, 0.92, 0.86
.;.;.;.;.;.;P;P;.;.;P;.
Vest4
0.88
MutPred
0.87
.;.;.;.;.;.;.;.;.;.;Gain of sheet (P = 0.0827);.;
MVP
0.97
MPC
0.35
ClinPred
0.25
T
GERP RS
5.2
Varity_R
0.55
gMVP
0.61

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.39
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.39
Position offset: 4

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs200844166; hg19: chr1-45796912; API