NM_001040108.2(MLH3):c.2425A>G (p.Met809Val) AND Colorectal cancer, hereditary nonpolyposis, type 7

Germline classification:: Conflicting interpretations of pathogenicity (3 submissions)
Last evaluated:: Jan 29, 2024
Review status:: criteria provided, conflicting classifications

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:: RCV001119882.17

Allele description [Variation Report for NM_001040108.2(MLH3):c.2425A>G (p.Met809Val)]

NM_001040108.2(MLH3):c.2425A>G (p.Met809Val)

Gene:

MLH3:mutL homolog 3 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

14q24.3

Genomic location:

Preferred name:

NM_001040108.2(MLH3):c.2425A>G (p.Met809Val)

HGVS:

NC_000014.9:g.75047231T>C
NG_008649.1:g.9302A>G
NM_001040108.2:c.2425A>GMANE SELECT
NM_014381.3:c.2425A>G
NP_001035197.1:p.Met809Val
NP_001035197.1:p.Met809Val
NP_055196.2:p.Met809Val
LRG_217t1:c.2425A>G
LRG_217:g.9302A>G
LRG_217p1:p.Met809Val
NC_000014.8:g.75513934T>C
NM_001040108.1:c.2425A>G

Protein change:

M809V

Links:

dbSNP: rs61752722

NCBI 1000 Genomes Browser:

rs61752722

Molecular consequence:

NM_001040108.2:c.2425A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_014381.3:c.2425A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Colorectal cancer, hereditary nonpolyposis, type 7
Identifiers:: MONDO: MONDO:0013725; MedGen: C1858380; Orphanet: 144; OMIM: 614385

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000562044	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Likely benign (Jan 29, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001278333	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Uncertain significance (Apr 27, 2017)	germline	clinical testing	Citation Link,
SCV004015904	KCCC/NGS Laboratory, Kuwait Cancer Control Center	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely benign (Jul 7, 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

SCV000562044

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Likely benign
(Jan 29, 2024)

germline

clinical testing

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

SCV001278333

Illumina Laboratory Services, Illumina

criteria provided, single submitter

(ICSL Variant Classification Criteria 13 December 2019)

Uncertain significance
(Apr 27, 2017)

germline

clinical testing

Citation Link,

SCV004015904

KCCC/NGS Laboratory, Kuwait Cancer Control Center

criteria provided, single submitter

(ACMG Guidelines, 2015)

Likely benign
(Jul 7, 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

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

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 Labcorp Genetics (formerly Invitae), Labcorp, SCV000562044.9

#	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 Illumina Laboratory Services, Illumina, SCV001278333.1

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

Description

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.

#	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 KCCC/NGS Laboratory, Kuwait Cancer Control Center, SCV004015904.1

#	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	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Oct 26, 2024

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