rs587780752
Variant summary
Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7
The NM_001048174.2(MUTYH):c.900C>T(p.Asp300Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,614,092 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 Likely benign (★★).
Frequency
Consequence
NM_001048174.2 synonymous
Scores
Clinical Significance
Conservation
Publications
- familial adenomatous polyposis 2Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen, G2P
- colorectal cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- familial ovarian cancerInheritance: AD, AR Classification: NO_KNOWN Submitted by: ClinGen
- hereditary breast carcinomaInheritance: AD, AR Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -11 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MUTYH | ENST00000456914.7 | c.900C>T | p.Asp300Asp | synonymous_variant | Exon 11 of 16 | 1 | NM_001048174.2 | ENSP00000407590.2 | ||
| ENSG00000288208 | ENST00000671898.1 | n.1488C>T | non_coding_transcript_exon_variant | Exon 15 of 21 | ENSP00000499896.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152204Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000119 AC: 3AN: 251444 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.0000171 AC: 25AN: 1461888Hom.: 0 Cov.: 35 AF XY: 0.0000151 AC XY: 11AN XY: 727244 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152204Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74352 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Familial adenomatous polyposis 2 Benign:4
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The MUTYH p.Asp328= variant was not identified in the literature nor was it identified in the COGR, Cosmic, MutDB, or UMD-LSDB databases. The variant was identified in dbSNP (ID: rs587780752) as "With Likely benign, Uncertain significance allele", and in ClinVar (classified as likely benign by Invitae, Counsyl, GeneDx, Ambry Genetics and Color Genomics). The variant was identified in control databases in 4 of 277162 chromosomes at a frequency of 0.00001 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: European in 2 of 126666 chromosomes (freq: 0.00002), and South Asian in 2 of 30782 chromosomes (freq: 0.00007); it was not observed in the African, Other, Latino, Ashkenazi Jewish, East Asian, and Finnish, populations. The p.Asp328 variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. The variant occurs outside of the splicing consensus sequence and 1 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
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not specified Benign:2
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not provided Benign:2
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The c.984C>T; p.Asp328Asp variant (rs587780752, ClinVar variant ID 135993) does not alter the amino acid sequence of the MUTYH protein and computational splice site prediction algorithms do not predict a change in the nearest splice site or creation of a cryptic splice site. This variant has not been reported in medical literature or in gene specific variation databases. This variant is listed in the genome Aggregation Database (gnomAD) with an overall population frequency of 0.001% (identified on 4 out of 277,162 chromosomes). Based on the available information, the c.984C>T variant is likely to be benign. -
Hereditary cancer-predisposing syndrome Benign:2
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This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at