chr1-45331416-T-C
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Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_001048174.2(MUTYH):c.1239+4A>G variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )
Consequence
MUTYH
NM_001048174.2 splice_donor_region, intron
NM_001048174.2 splice_donor_region, intron
Scores
2
Splicing: ADA: 0.2135
2
Clinical Significance
Conservation
PhyloP100: 1.71
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 Likely_benign. Variant got -2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MUTYH | NM_001048174.2 | c.1239+4A>G | splice_donor_region_variant, intron_variant | ENST00000456914.7 | |||
MUTYH | NM_001128425.2 | c.1323+4A>G | splice_donor_region_variant, intron_variant | ENST00000710952.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MUTYH | ENST00000456914.7 | c.1239+4A>G | splice_donor_region_variant, intron_variant | 1 | NM_001048174.2 | A1 | |||
MUTYH | ENST00000710952.2 | c.1323+4A>G | splice_donor_region_variant, intron_variant | NM_001128425.2 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461892Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2AN XY: 727246
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6
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1461892
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33
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2
AN XY:
727246
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GnomAD4 genome Cov.: 33
GnomAD4 genome
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Jun 29, 2019 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Benign
Splicing
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Calibrated prediction
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dbscSNV1_ADA
Benign
dbscSNV1_RF
Benign
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DG_spliceai
Position offset: 0
Find out detailed SpliceAI scores and Pangolin per-transcript scores at