ClinVar Genomic variation as it relates to human health
NM_001048174.2(MUTYH):c.420+19_420+31del
The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.
Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.
No data submitted for somatic clinical impact
No data submitted for oncogenicity
Variant Details
- Identifiers
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NM_001048174.2(MUTYH):c.420+19_420+31del
Variation ID: 406825 Accession: VCV000406825.41
- Type and length
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Deletion, 13 bp
- Location
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Cytogenetic: 1p34.1 1: 45332887-45332899 (GRCh38) [ NCBI UCSC ] 1: 45798559-45798571 (GRCh37) [ NCBI UCSC ]
- Timeline in ClinVar
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First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.
Last submission Help The date of the most recent submission for each type of classification for this variant.
Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline Feb 19, 2018 Dec 22, 2024 Feb 19, 2024 - HGVS
- ... more HGVS ... less HGVS
- Protein change
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- Other names
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- Canonical SPDI
- NC_000001.11:45332886:CCTATTTCCCCTACC:CC
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Functional
consequence HelpThe effect of the variant on RNA or protein function, based on experimental evidence from submitters.
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Global minor allele
frequency (GMAF) HelpThe global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.
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Allele frequency
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The frequency of the allele represented by this VCV record.
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- Links
Genes
Gene | OMIM | ClinGen Gene Dosage Sensitivity Curation |
Variation Viewer
Help
Links to Variation Viewer, a genome browser to view variation data from NCBI databases. |
Related variants | ||
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HI score
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The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
TS score
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The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
Within gene
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The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants. |
All
Help
The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene. |
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MUTYH | - | - |
GRCh38 GRCh37 |
2740 | 2897 |
Conditions - Germline
Condition
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The condition for this variant-condition (RCV) record in ClinVar. |
Classification
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The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions) |
Review status
Help
The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. |
Last evaluated
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The most recent date that a submitter evaluated this variant for the condition. |
Variation/condition record
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The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page. |
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Pathogenic/Likely pathogenic (4) |
criteria provided, multiple submitters, no conflicts
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Jul 24, 2023 | RCV000459179.15 | |
Pathogenic/Likely pathogenic (2) |
criteria provided, multiple submitters, no conflicts
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Feb 19, 2024 | RCV000580373.11 | |
Pathogenic/Likely pathogenic (4) |
criteria provided, multiple submitters, no conflicts
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Oct 1, 2023 | RCV000679429.23 | |
Likely pathogenic (1) |
no assertion criteria provided
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Aug 21, 2021 | RCV001579292.3 |
Submissions - Germline
Classification
Help
The submitted germline classification for each SCV record. (Last evaluated) |
Review status
Help
Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria) |
Condition
Help
The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant. |
Submitter
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The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar. |
More information
Help
This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter. |
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Likely pathogenic
(Apr 23, 2018)
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criteria provided, single submitter
Method: clinical testing
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Familial adenomatous polyposis 2
Affected status: unknown
Allele origin:
unknown
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Counsyl
Accession: SCV000799495.1
First in ClinVar: Aug 05, 2018 Last updated: Aug 05, 2018 |
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Likely pathogenic
(Jan 08, 2018)
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criteria provided, single submitter
Method: clinical testing
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not provided
Affected status: unknown
Allele origin:
germline
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PreventionGenetics, part of Exact Sciences
Accession: SCV000806359.1
First in ClinVar: Sep 14, 2018 Last updated: Sep 14, 2018 |
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Pathogenic
(Jan 25, 2022)
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criteria provided, single submitter
Method: clinical testing
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not provided
Affected status: unknown
Allele origin:
germline
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ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Accession: SCV002506259.2
First in ClinVar: May 07, 2022 Last updated: Dec 24, 2022 |
Comment:
The MUTYH c.504+19_504+31del variant (rs781222233) is reported in the literature in the compound heterozygous or homozygous state in several individuals and families affected with MUTYH-associated … (more)
The MUTYH c.504+19_504+31del variant (rs781222233) is reported in the literature in the compound heterozygous or homozygous state in several individuals and families affected with MUTYH-associated polyposis (Di Gregorio 2006, Fostira 2010, Jones 2009, Morak 2010, Papp 2016, Vogt 2009). This variant is also reported in ClinVar (Variation ID: 406825), and is only observed on two alleles in the Genome Aggregation Database, indicating it is not a common polymorphism. This is an intronic variant that deleted 13 nucleotides of intron 6, and in vitro functional analyses demonstrate skipping of exon 6, leading to an in-frame deletion that removes part of the critical glycosylase catalytic domain (Fostira 2010). Based on available information, this variant is considered to be pathogenic. References: Di Gregorio C et al. Immunohistochemical expression of MYH protein can be used to identify patients with MYH-associated polyposis. Gastroenterology. 2006 Aug;131(2):439-44. PMID: 16890597. Fostira F et al. An in-frame exon-skipping MUTYH mutation is associated with early-onset colorectal cancer. Dis Colon Rectum. 2010 Aug;53(8):1197-201. PMID: 20628285. Jones N et al. Increased colorectal cancer incidence in obligate carriers of heterozygous mutations in MUTYH. Gastroenterology. 2009 Aug;137(2):489-94, 494.e1; quiz 725-6. PMID: 19394335. Morak M et al. MUTYH-associated polyposis - variability of the clinical phenotype in patients with biallelic and monoallelic MUTYH mutations and report on novel mutations. Clin Genet. 2010 Oct;78(4):353-63. PMID: 20618354. Papp J et al. Contribution of APC and MUTYH mutations to familial adenomatous polyposis susceptibility in Hungary. Fam Cancer. 2016 Jan;15(1):85-97. PMID: 26446593. Vogt S et al. Expanded extracolonic tumor spectrum in MUTYH-associated polyposis. Gastroenterology. 2009 Dec;137(6):1976-85.e1-10. PMID: 19732775. (less)
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Pathogenic
(Mar 17, 2023)
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criteria provided, single submitter
Method: clinical testing
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Familial adenomatous polyposis 2
Affected status: unknown
Allele origin:
unknown
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Baylor Genetics
Accession: SCV004198977.1
First in ClinVar: Dec 30, 2023 Last updated: Dec 30, 2023 |
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Likely pathogenic
(Jun 14, 2023)
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criteria provided, single submitter
Method: clinical testing
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Hereditary cancer-predisposing syndrome
Affected status: unknown
Allele origin:
germline
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Color Diagnostics, LLC DBA Color Health
Accession: SCV000685635.6
First in ClinVar: Feb 19, 2018 Last updated: Feb 14, 2024 |
Comment:
This variant causes a 13 base pair deletion in intron 6 of the MUTYH gene. An RNA study found this variant resulted in the in-frame … (more)
This variant causes a 13 base pair deletion in intron 6 of the MUTYH gene. An RNA study found this variant resulted in the in-frame skipping of exon 6 (PMID: 20628285). This variant has been reported in compound heterozygous and homozygous carriers with polyposis and/or colorectal cancer (PMID: 16890597, 19732775, 20618354, 20628285, 26446593, 27829682). In particular, this variant was observed in the compound heterozygous state with a pathogenic variant, c.1437_1439del, in an individual affected with polyps and colorectal cancer (PMID: 20628285). The proband's mother, who was heterozygous for this variant, as well as the proband's sister, who was heterozygous for c.1437_1439del variant, were unaffected with polyps and colorectal cancer. This variant was also observed in homozygosity in three siblings in a different family (PMID: 20628285). Their heterozygous mother, father, and one sibling were unaffected with polyps and colorectal cancer (PMID: 20628285). This variant has been identified in 2/251048 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of MUTYH function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Likely Pathogenic. (less)
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Pathogenic
(Jul 24, 2023)
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criteria provided, single submitter
Method: clinical testing
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Familial adenomatous polyposis 2
Affected status: unknown
Allele origin:
germline
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Labcorp Genetics (formerly Invitae), Labcorp
Accession: SCV000545720.10
First in ClinVar: Apr 17, 2017 Last updated: Feb 28, 2024 |
Comment:
For these reasons, this variant has been classified as Pathogenic. Studies have shown that this variant results in skipping of exon 6, but is expected … (more)
For these reasons, this variant has been classified as Pathogenic. Studies have shown that this variant results in skipping of exon 6, but is expected to preserve the integrity of the reading-frame (PMID: 20628285; Invitae). ClinVar contains an entry for this variant (Variation ID: 406825). This variant is also known as IVS6+19-31del13. This variant has been observed in individual(s) with MUTYH-associated polyposis (PMID: 16890597, 19732775, 20628285, 21520333). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. This variant is present in population databases (rs781222233, gnomAD 0.002%). This sequence change falls in intron 6 of the MUTYH gene. It does not directly change the encoded amino acid sequence of the MUTYH protein. RNA analysis indicates that this variant induces altered splicing and likely results in a shortened protein product. (less)
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Likely Pathogenic
(Jun 26, 2023)
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criteria provided, single submitter
Method: clinical testing
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Familial adenomatous polyposis 2
(Autosomal recessive inheritance)
Affected status: unknown
Allele origin:
germline
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All of Us Research Program, National Institutes of Health
Accession: SCV004815007.1
First in ClinVar: Apr 20, 2024 Last updated: Apr 20, 2024
Comment:
This study involves interpretation of variants in research participants for the purpose of population health screening. Participant phenotype was not available at the time of … (more)
This study involves interpretation of variants in research participants for the purpose of population health screening. Participant phenotype was not available at the time of variant classification. Additional details can be found in publication PMID: 35346344, PMCID: PMC8962531 (less)
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Comment:
This variant causes a 13 base pair deletion in intron 6 of the MUTYH gene. An RNA study found this variant resulted in the in-frame … (more)
This variant causes a 13 base pair deletion in intron 6 of the MUTYH gene. An RNA study found this variant resulted in the in-frame skipping of exon 6 (PMID: 20628285). This variant has been reported in compound heterozygous and homozygous carriers with polyposis and/or colorectal cancer (PMID: 16890597, 19732775, 20618354, 20628285, 26446593, 27829682). In particular, this variant was observed in the compound heterozygous state with a pathogenic variant, c.1437_1439del, in an individual affected with polyps and colorectal cancer (PMID: 20628285). The proband's mother, who was heterozygous for this variant, as well as the proband's sister, who was heterozygous for c.1437_1439del variant, were unaffected with polyps and colorectal cancer. This variant was also observed in homozygosity in three siblings in a different family (PMID: 20628285). Their heterozygous mother, father, and one sibling were unaffected with polyps and colorectal cancer (PMID: 20628285). This variant has been identified in 2/251048 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of MUTYH function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Likely Pathogenic. (less)
Number of individuals with the variant: 3
Zygosity: Single Heterozygote
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Pathogenic
(Feb 19, 2024)
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criteria provided, single submitter
Method: clinical testing
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Hereditary cancer-predisposing syndrome
Affected status: unknown
Allele origin:
germline
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Ambry Genetics
Accession: SCV001185342.4
First in ClinVar: Mar 16, 2020 Last updated: May 01, 2024 |
Comment:
The c.504+19_504+31del13 intronic pathogenic mutation is located 19 nucleotides after coding exon 6 in the MUTYH gene. This variant results from a deletion of 13 … (more)
The c.504+19_504+31del13 intronic pathogenic mutation is located 19 nucleotides after coding exon 6 in the MUTYH gene. This variant results from a deletion of 13 nucleotides at positions c.504+19 to c.504+31. This variant has been reported in the homozygous state as well as in conjunction with MUTYH pathogenic mutations in individuals with adenomatous polyposis and co-segregated with disease in three affected siblings of a family (Di Gregorio C et al. Gastroenterology, 2006 Aug;131:439-44; Jones N et al. Gastroenterology, 2009 Aug;137:489-94, 494.e1; quiz 725-6; Vogt S et al. Gastroenterology, 2009 Dec;137:1976-85.e1-10; Fostira F et al. Dis. Colon Rectum, 2010 Aug;53:1197-201; Papp J et al. Fam. Cancer, 2016 Jan;15:85-97). Analysis by RT-PCR using RNA from a patient homozygous for this variant and a compound heterozygous patient was reported to result in complete in-frame skipping of MUTYH coding exon 6 (Fostira F et al. Dis. Colon Rectum, 2010 Aug;53:1197-201). RNA studies have demonstrated that this alteration results in abnormal splicing in the set of samples tested (Ambry internal data). Based on an internal structural analysis, deletion of MUTYH coding exon 6 would be structurally deleterious (Ambry internal data). These nucleotide positions are not well conserved in available vertebrate species. In silico splice site analysis for this alteration is inconclusive. This variant was not reported in population-based cohorts in the Genome Aggregation Database (gnomAD). Based on the supporting evidence, this alteration is interpreted as a disease-causing mutation. (less)
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Pathogenic
(Nov 28, 2022)
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criteria provided, single submitter
Method: clinical testing
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not provided
Affected status: yes
Allele origin:
germline
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Clinical Genetics Laboratory, Skane University Hospital Lund
Accession: SCV005187351.1
First in ClinVar: Aug 18, 2024 Last updated: Aug 18, 2024 |
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Likely pathogenic
(Oct 01, 2023)
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criteria provided, single submitter
Method: clinical testing
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not provided
Affected status: yes
Allele origin:
germline
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CeGaT Center for Human Genetics Tuebingen
Accession: SCV004123769.11
First in ClinVar: Nov 20, 2023 Last updated: Dec 22, 2024 |
Comment:
MUTYH: PM3:Strong, PM2, PS3:Supporting, PS4:Supporting
Number of individuals with the variant: 1
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Likely pathogenic
(Aug 21, 2021)
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no assertion criteria provided
Method: clinical testing
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Colonic neoplasm
(Autosomal recessive inheritance)
Affected status: yes
Allele origin:
germline
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Medical Genetics Laboratory, Umraniye Training and Research Hospital, University of Health Sciences
Accession: SCV001805825.2
First in ClinVar: Aug 25, 2021 Last updated: Sep 08, 2021 |
Comment:
Medullary Carcinoma EST= - PRO = - HER2 = - KI = -
Zygosity: Single Heterozygote
Sex: female
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Germline Functional Evidence
There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar. |
Citations for germline classification of this variant
HelpTitle | Author | Journal | Year | Link |
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Type and frequency of MUTYH variants in Italian patients with suspected MAP: a retrospective multicenter study. | Ricci MT | Journal of human genetics | 2017 | PMID: 27829682 |
Contribution of APC and MUTYH mutations to familial adenomatous polyposis susceptibility in Hungary. | Papp J | Familial cancer | 2016 | PMID: 26446593 |
LOVD v.2.0: the next generation in gene variant databases. | Fokkema IF | Human mutation | 2011 | PMID: 21520333 |
An in-frame exon-skipping MUTYH mutation is associated with early-onset colorectal cancer. | Fostira F | Diseases of the colon and rectum | 2010 | PMID: 20628285 |
MUTYH-associated polyposis - variability of the clinical phenotype in patients with biallelic and monoallelic MUTYH mutations and report on novel mutations. | Morak M | Clinical genetics | 2010 | PMID: 20618354 |
Expanded extracolonic tumor spectrum in MUTYH-associated polyposis. | Vogt S | Gastroenterology | 2009 | PMID: 19732775 |
Increased colorectal cancer incidence in obligate carriers of heterozygous mutations in MUTYH. | Jones N | Gastroenterology | 2009 | PMID: 19394335 |
Immunohistochemical expression of MYH protein can be used to identify patients with MYH-associated polyposis. | Di Gregorio C | Gastroenterology | 2006 | PMID: 16890597 |
Text-mined citations for rs781222233 ...
HelpRecord last updated Jan 13, 2025
This date represents the last time this VCV record was updated. The update may be due to an update to one of the included submitted records (SCVs), or due to an update that ClinVar made to the variant such as adding HGVS expressions or a rs number. So this date may be different from the date of the “most recent submission” reported at the top of this page.