NM_000249.4(MLH1):c.676C>T (p.Arg226Ter) AND not provided
- Germline classification:
- Pathogenic (8 submissions)
- Last evaluated:
- Jul 1, 2024
- Review status:
- 2 stars out of maximum of 4 starscriteria provided, multiple submitters, no conflicts
- Somatic classification
of clinical impact: - None
- Review status:
- (0/4) 0 stars out of maximum of 4 starsno assertion criteria provided
- Somatic classification
of oncogenicity: - None
- Review status:
- (0/4) 0 stars out of maximum of 4 starsno assertion criteria provided
- Record status:
- current
- Accession:
- RCV000202205.21
Allele description [Variation Report for NM_000249.4(MLH1):c.676C>T (p.Arg226Ter)]
NM_000249.4(MLH1):c.676C>T (p.Arg226Ter)
- Gene:
- MLH1:mutL homolog 1 [Gene - OMIM - HGNC]
- Variant type:
- single nucleotide variant
- Cytogenetic location:
- 3p22.2
- Genomic location:
- Preferred name:
- NM_000249.4(MLH1):c.676C>T (p.Arg226Ter)
- Other names:
- p.R226*:CGA>TGA
- HGVS:
- NC_000003.12:g.37012098C>T
- NG_007109.2:g.23749C>T
- NM_000249.4:c.676C>TMANE SELECT
- NM_001167617.3:c.382C>T
- NM_001167618.3:c.-48C>T
- NM_001167619.3:c.-48C>T
- NM_001258271.2:c.676C>T
- NM_001258273.2:c.-48C>T
- NM_001258274.3:c.-48C>T
- NM_001354615.2:c.-48C>T
- NM_001354616.2:c.-48C>T
- NM_001354617.2:c.-48C>T
- NM_001354618.2:c.-48C>T
- NM_001354619.2:c.-48C>T
- NM_001354620.2:c.382C>T
- NM_001354621.2:c.-141C>T
- NM_001354622.2:c.-254C>T
- NM_001354623.2:c.-254C>T
- NM_001354624.2:c.-151C>T
- NM_001354625.2:c.-151C>T
- NM_001354626.2:c.-151C>T
- NM_001354627.2:c.-151C>T
- NM_001354628.2:c.676C>T
- NM_001354629.2:c.577C>T
- NM_001354630.2:c.676C>T
- NP_000240.1:p.Arg226Ter
- NP_000240.1:p.Arg226Ter
- NP_001161089.1:p.Arg128Ter
- NP_001245200.1:p.Arg226Ter
- NP_001341549.1:p.Arg128Ter
- NP_001341557.1:p.Arg226Ter
- NP_001341558.1:p.Arg193Ter
- NP_001341559.1:p.Arg226Ter
- LRG_216t1:c.676C>T
- LRG_216:g.23749C>T
- LRG_216p1:p.Arg226Ter
- NC_000003.11:g.37053589C>T
- NM_000249.3:c.676C>T
- NM_001167617.1:c.382C>T
- p.Arg226*
- p.Arg226Stop
- p.R226*
This HGVS expression did not pass validation- Protein change:
- R128*; ARG226TER
- Links:
- OMIM: 120436.0010; dbSNP: rs63751615
- NCBI 1000 Genomes Browser:
- rs63751615
- Molecular consequence:
- NM_001167618.3:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001167619.3:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001258273.2:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001258274.3:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354615.2:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354616.2:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354617.2:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354618.2:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354619.2:c.-48C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354621.2:c.-141C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354622.2:c.-254C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354623.2:c.-254C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354624.2:c.-151C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354625.2:c.-151C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354626.2:c.-151C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_001354627.2:c.-151C>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
- NM_000249.4:c.676C>T - nonsense - [Sequence Ontology: SO:0001587]
- NM_001167617.3:c.382C>T - nonsense - [Sequence Ontology: SO:0001587]
- NM_001258271.2:c.676C>T - nonsense - [Sequence Ontology: SO:0001587]
- NM_001354620.2:c.382C>T - nonsense - [Sequence Ontology: SO:0001587]
- NM_001354628.2:c.676C>T - nonsense - [Sequence Ontology: SO:0001587]
- NM_001354629.2:c.577C>T - nonsense - [Sequence Ontology: SO:0001587]
- NM_001354630.2:c.676C>T - nonsense - [Sequence Ontology: SO:0001587]
- Observations:
- 4
Condition(s)
- Synonyms:
- none provided
- Identifiers:
- MedGen: C3661900
Assertion and evidence details
Submission Accession | Submitter | Review Status (Assertion method) | Clinical Significance (Last evaluated) | Origin | Method | Citations |
---|---|---|---|---|---|---|
SCV000149394 | GeneDx | criteria provided, single submitter (GeneDx Variant Classification Process June 2021) | Pathogenic (Aug 22, 2019) | germline | clinical testing | |
SCV000257111 | Mayo Clinic Laboratories, Mayo Clinic | no assertion criteria provided | Pathogenic | unknown | research | |
SCV000601407 | Quest Diagnostics Nichols Institute San Juan Capistrano | criteria provided, single submitter (Quest Diagnostics criteria) | Pathogenic (May 12, 2021) | unknown | clinical testing | |
SCV001552418 | Department of Pathology and Laboratory Medicine, Sinai Health System - The Canadian Open Genetics Repository (COGR)
| no assertion criteria provided | Uncertain significance | unknown | clinical testing | |
SCV001740166 | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen - VKGL Data-share Consensus | no assertion criteria provided | Pathogenic | germline | clinical testing | |
SCV001953289 | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ - VKGL Data-share Consensus
| no assertion criteria provided | Pathogenic | germline | clinical testing | |
SCV003821573 | Revvity Omics, Revvity | criteria provided, single submitter (ACMG Guidelines, 2015) | Pathogenic (Apr 11, 2022) | germline | clinical testing | |
SCV005093181 | CeGaT Center for Human Genetics Tuebingen | criteria provided, single submitter (CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2) | Pathogenic (Jul 1, 2024) | germline | clinical testing |
Summary from all submissions
Ethnicity | Origin | Affected | Individuals | Families | Chromosomes tested | Number Tested | Family history | Method |
---|---|---|---|---|---|---|---|---|
not provided | unknown | yes | 2 | not provided | not provided | not provided | not provided | clinical testing |
not provided | unknown | unknown | 1 | not provided | not provided | not provided | not provided | clinical testing, research |
not provided | germline | yes | 1 | not provided | not provided | not provided | not provided | clinical testing |
not provided | germline | unknown | not provided | not provided | not provided | not provided | not provided | clinical testing |
Citations
PubMed
Human MLH1 deficiency predisposes to hematological malignancy and neurofibromatosis type 1.
Ricciardone MD, Ozçelik T, Cevher B, Ozdağ H, Tuncer M, Gürgey A, Uzunalimoğlu O, Cetinkaya H, Tanyeli A, Erken E, Oztürk M.
Cancer Res. 1999 Jan 15;59(2):290-3.
- PMID:
- 9927033
Comprehensive Constitutional Genetic and Epigenetic Characterization of Lynch-Like Individuals.
Dámaso E, González-Acosta M, Vargas-Parra G, Navarro M, Balmaña J, Ramon Y Cajal T, Tuset N, Thompson BA, Marín F, Fernández A, Gómez C, Velasco À, Solanes A, Iglesias S, Urgel G, López C, Del Valle J, Campos O, Santacana M, Matias-Guiu X, Lázaro C, Valle L, et al.
Cancers (Basel). 2020 Jul 5;12(7). doi:pii: E1799. 10.3390/cancers12071799.
- PMID:
- 32635641
- PMCID:
- PMC7408773
Details of each submission
From GeneDx, SCV000149394.15
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | not provided |
Description
Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Not observed at a significant frequency in large population cohorts (Lek 2016); Truncating variants in this gene are considered pathogenic by a well-established clinical consortium and/or database; This variant is associated with the following publications: (PMID: 27601186, 25980754, 28514183, 10874307, 21056691, 21868491, 21247423, 20924129, 20045164, 19690142, 18307539, 15655560, 9927033, 8872463, 23047549, 25525159, 17889038, 22949379, 15849733, 12624141, 21879275, 22776989, 9472100, 24344984, 24456667, 28445943, 26681312, 28449805, 28944238, 11343035, 28502729, 29478780, 28874130, 30521064, 30720243, 30262796, 29505604, 30998989, 29625052, 30217226, 32719484)
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | germline | yes | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Mayo Clinic Laboratories, Mayo Clinic, SCV000257111.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 1 | not provided | not provided | research | not provided |
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | unknown | unknown | not provided | not provided | not provided | 1 | not provided | not provided | not provided |
From Quest Diagnostics Nichols Institute San Juan Capistrano, SCV000601407.4
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | PubMed (10) |
Description
This variant causes the premature termination of MLH1 protein synthesis. In the published literature, this variant has been reported in individuals and families with Lynch syndrome (PMIDs: 32635641 (2020), 28944238 (2017), 28874130 (2017), 21247423 (2011), 23047549 (2012)), and constitutional mismatch repair deficiency (CMMRD) syndrome (PMID: 17889038 (2008)). The frequency of this variant in the general population, 0.000004 (1/250982 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is consistent with pathogenicity. Analysis of this variant using software algorithms for the prediction of the effect of nucleotide changes on splicing yielded predictions that this variant does not affect MLH1 mRNA splicing . Based on the available information, this variant is classified as pathogenic.
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | unknown | unknown | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Department of Pathology and Laboratory Medicine, Sinai Health System - The Canadian Open Genetics Repository (COGR), SCV001552418.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 2 | not provided | not provided | clinical testing | not provided |
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | unknown | yes | not provided | not provided | not provided | 2 | not provided | not provided | not provided |
From Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen - VKGL Data-share Consensus, SCV001740166.3
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | not provided |
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | germline | yes | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ - VKGL Data-share Consensus, SCV001953289.1
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | not provided |
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | germline | yes | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From Revvity Omics, Revvity, SCV003821573.2
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | not provided | not provided | not provided | clinical testing | PubMed (1) |
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | germline | unknown | not provided | not provided | not provided | not provided | not provided | not provided | not provided |
From CeGaT Center for Human Genetics Tuebingen, SCV005093181.3
# | Ethnicity | Individuals | Chromosomes Tested | Family History | Method | Citations |
---|---|---|---|---|---|---|
1 | not provided | 1 | not provided | not provided | clinical testing | not provided |
Description
MLH1: PVS1, PP1:Strong, PM2, PS4:Moderate
# | Sample | Method | Observation | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Origin | Affected | Number tested | Tissue | Purpose | Method | Individuals | Allele frequency | Families | Co-occurrences | |
1 | germline | yes | not provided | not provided | not provided | 1 | not provided | not provided | not provided |
Last Updated: Oct 20, 2024