NM_000179.3(MSH6):c.-18G>T AND not specified

Germline classification:: Benign/Likely benign (3 submissions)
Last evaluated:: Aug 15, 2023
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000212623.12

Allele description [Variation Report for NM_000179.3(MSH6):c.-18G>T]

NM_000179.3(MSH6):c.-18G>T

Gene:

MSH6:mutS homolog 6 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

2p16.3

Genomic location:

Preferred name:

NM_000179.3(MSH6):c.-18G>T

HGVS:

NC_000002.12:g.47783216G>T
NG_007111.1:g.5070G>T
NM_000179.3:c.-18G>TMANE SELECT
NM_001281492.2:c.-18G>T
NM_001281493.2:c.-754G>T
LRG_219t1:c.-18G>T
LRG_219:g.5070G>T
NC_000002.11:g.48010355G>T
NM_000179.2:c.-18G>T

Links:

dbSNP: rs199913053

NCBI 1000 Genomes Browser:

rs199913053

Molecular consequence:

NM_000179.3:c.-18G>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
NM_001281492.2:c.-18G>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]
NM_001281493.2:c.-754G>T - 5 prime UTR variant - [Sequence Ontology: SO:0001623]

Condition(s)

Synonyms:: AllHighlyPenetrant
Identifiers:: MedGen: CN169374

Recent activity

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ABC-F type ribosomal protection protein [Bacillus sp. FSL K6-2841]
ABC-F type ribosomal protection protein [Bacillus sp. FSL K6-2841]
gi|2709921862|gnl|PRJNA768416|MHH68 0|gb|WYT20115.1|

Protein

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000211372	GeneDx	criteria provided, single submitter (GeneDx Variant Classification (06012015))	Benign (Jun 17, 2014)	germline	clinical testing	Citation Link,
SCV000917759	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	criteria provided, single submitter (LabCorp Variant Classification Summary - May 2015)	Benign (Apr 13, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID] Citation Link,
SCV002760652	Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely benign (Aug 15, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000211372

GeneDx

criteria provided, single submitter

(GeneDx Variant Classification (06012015))

Benign
(Jun 17, 2014)

germline

clinical testing

Citation Link,

SCV000917759

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

criteria provided, single submitter

(LabCorp Variant Classification Summary - May 2015)

Benign
(Apr 13, 2018)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Citation Link,

SCV002760652

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

criteria provided, single submitter

(ACMG Guidelines, 2015)

Likely benign
(Aug 15, 2023)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	not provided	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

Frequency of hereditary non-polyposis colorectal cancer among unselected patients with colorectal cancer in Germany.

Lamberti C, Mangold E, Pagenstecher C, Jungck M, Schwering D, Bollmann M, Vogel J, Kindermann D, Nikorowitsch R, Friedrichs N, Schneider B, Houshdaran F, Schmidt-Wolf IG, Friedl W, Propping P, Sauerbruch T, Büttner R, Mathiak M.

Digestion. 2006;74(1):58-67. Epub 2006 Mar 3.

PubMed [citation]

PMID:: 17095871

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From GeneDx, SCV000211372.10

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

#	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 Women's Health and Genetics/Laboratory Corporation of America, LabCorp, SCV000917759.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

Variant summary: MSH6 c.-18G>T is located in the untranslated mRNA region upstream of the initiation codon. The variant was observed with an allele frequency of 0.0003 in 270744 control chromosomes (gnomAD). The observed variant frequency is approximately 2-folds higher than the estimated maximal expected allele frequency for a pathogenic variant in MSH6 causing Lynch Syndrome phenotype (0.00014), strongly suggesting that the variant is benign. The variant, c.-18G>T, has been reported in the literature in an individual affected with Lynch Syndrome (Lamberti_2006). These report(s) do not provide unequivocal conclusions about association of the variant with Lynch Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. A ClinVar submission from a clinical diagnostic laboratory (evaluation after 2014) cites the variant as "likely benign." Based on the evidence outlined above, the variant was classified as benign.

#	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 Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital, SCV002760652.3

#	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

Last Updated: Nov 3, 2024

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