rs121908380

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6BS2_Supporting

The NM_001293192.2(MUTYH):​c.-49C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0016 in 1,614,190 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0016 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 6 hom. )

Consequence

MUTYH
NM_001293192.2 5_prime_UTR_premature_start_codon_gain

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:27

Conservation

PhyloP100: -0.362

Publications

51 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 1-45333449-G-A is Benign according to our data. Variant chr1-45333449-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 132760.
BS2
High Homozygotes in GnomAdExome4 at 6 AD,AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001293192.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MUTYH
NM_001128425.2
MANE Plus Clinical
c.312C>Tp.Tyr104Tyr
synonymous
Exon 3 of 16NP_001121897.1E5KP25
MUTYH
NM_001048174.2
MANE Select
c.228C>Tp.Tyr76Tyr
synonymous
Exon 3 of 16NP_001041639.1Q9UIF7-6
MUTYH
NM_001293192.2
c.-49C>T
5_prime_UTR_premature_start_codon_gain
Exon 3 of 16NP_001280121.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MUTYH
ENST00000710952.2
MANE Plus Clinical
c.312C>Tp.Tyr104Tyr
synonymous
Exon 3 of 16ENSP00000518552.2E5KP25
MUTYH
ENST00000456914.7
TSL:1 MANE Select
c.228C>Tp.Tyr76Tyr
synonymous
Exon 3 of 16ENSP00000407590.2Q9UIF7-6
MUTYH
ENST00000372098.7
TSL:1
c.303C>Tp.Tyr101Tyr
synonymous
Exon 3 of 16ENSP00000361170.3Q9UIF7-1

Frequencies

GnomAD3 genomes
AF:
0.00157
AC:
239
AN:
152190
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000434
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.00268
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00480
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00178
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.00140
AC:
353
AN:
251480
AF XY:
0.00130
show subpopulations
Gnomad AFR exome
AF:
0.000431
Gnomad AMR exome
AF:
0.00150
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00471
Gnomad NFE exome
AF:
0.00156
Gnomad OTH exome
AF:
0.00179
GnomAD4 exome
AF:
0.00160
AC:
2341
AN:
1461882
Hom.:
6
Cov.:
35
AF XY:
0.00153
AC XY:
1110
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.000418
AC:
14
AN:
33480
American (AMR)
AF:
0.00145
AC:
65
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000580
AC:
5
AN:
86258
European-Finnish (FIN)
AF:
0.00431
AC:
230
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00175
AC:
1949
AN:
1112006
Other (OTH)
AF:
0.00129
AC:
78
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
144
288
431
575
719
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
74
148
222
296
370
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00157
AC:
239
AN:
152308
Hom.:
1
Cov.:
32
AF XY:
0.00176
AC XY:
131
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.000433
AC:
18
AN:
41552
American (AMR)
AF:
0.00268
AC:
41
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00480
AC:
51
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00178
AC:
121
AN:
68030
Other (OTH)
AF:
0.00142
AC:
3
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
15
30
46
61
76
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000397
Hom.:
0
Bravo
AF:
0.00127
EpiCase
AF:
0.00158
EpiControl
AF:
0.00178

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
12
not provided (12)
-
-
6
Hereditary cancer-predisposing syndrome (6)
-
-
5
not specified (5)
-
1
3
Familial adenomatous polyposis 2 (4)
-
-
1
Carcinoma of colon (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.66
CADD
Benign
3.8
DANN
Benign
0.79
PhyloP100
-0.36
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=98/2
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

Publications

Other links and lift over

dbSNP: rs121908380; hg19: chr1-45799121; COSMIC: COSV58343431; COSMIC: COSV58343431; API