NM_000179.3:c.-8C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_000179.3(MSH6):c.-8C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000906 in 1,611,260 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000090 ( 1 hom. )

Consequence

MSH6
NM_000179.3 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:7

Conservation

PhyloP100: 1.07

Publications

2 publications found

Variant links:

COSMIC-nc: COSV52281564

Genes affected

MSH6 (HGNC:7329): (mutS homolog 6) This gene encodes a member of the DNA mismatch repair MutS family. In E. coli, the MutS protein helps in the recognition of mismatched nucleotides prior to their repair. A highly conserved region of approximately 150 aa, called the Walker-A adenine nucleotide binding motif, exists in MutS homologs. The encoded protein heterodimerizes with MSH2 to form a mismatch recognition complex that functions as a bidirectional molecular switch that exchanges ADP and ATP as DNA mismatches are bound and dissociated. Mutations in this gene may be associated with hereditary nonpolyposis colon cancer, colorectal cancer, and endometrial cancer. Transcripts variants encoding different isoforms have been described. [provided by RefSeq, Jul 2013]

MSH6 Gene-Disease associations (from GenCC):

Lynch syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, G2P, Orphanet
Lynch syndrome 5
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
mismatch repair cancer syndrome 1
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
mismatch repair cancer syndrome 3
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, G2P
ovarian cancer
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
malignant pancreatic neoplasm
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
Muir-Torre syndrome
Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet
rhabdomyosarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
breast cancer
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
prostate cancer
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
hereditary breast carcinoma
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

MSH6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.73).

BP6

Variant 2-47783226-C-T is Benign according to our data. Variant chr2-47783226-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 89164.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000905 (132/1458930) while in subpopulation MID AF = 0.00191 (11/5764). AF 95% confidence interval is 0.00107. There are 1 homozygotes in GnomAdExome4. There are 73 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000179.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MSH6	NM_000179.3	MANE Select	c.-8C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 10	NP_000170.1	P52701-1
MSH6	NM_000179.3	MANE Select	c.-8C>T	5_prime_UTR	Exon 1 of 10	NP_000170.1	P52701-1
MSH6	NM_001406795.1		c.-8C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 11	NP_001393724.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MSH6	ENST00000234420.11	TSL:1 MANE Select	c.-8C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 10	ENSP00000234420.5	P52701-1
MSH6	ENST00000234420.11	TSL:1 MANE Select	c.-8C>T	5_prime_UTR	Exon 1 of 10	ENSP00000234420.5	P52701-1
MSH6	ENST00000445503.5	TSL:1	n.-8C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 9	ENSP00000405294.1	F8WAX8

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000119

AC:

AN:

244110

AF XY:

0.000105

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000879

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000139

Gnomad NFE exome

AF:

0.000100

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000905

AC:

132

AN:

1458930

Hom.:

Cov.:

AF XY:

0.000101

AC XY:

AN XY:

725866

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33098

American (AMR)

AF:

0.0000897

AC:

AN:

44604

Ashkenazi Jewish (ASJ)

AF:

0.0000384

AC:

AN:

26052

East Asian (EAS)

AF:

0.00

AC:

AN:

39468

South Asian (SAS)

AF:

0.000372

AC:

AN:

86002

European-Finnish (FIN)

AF:

0.0000574

AC:

AN:

52308

Middle Eastern (MID)

AF:

0.00191

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.0000594

AC:

AN:

1111334

Other (OTH)

AF:

0.000249

AC:

AN:

60300

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41582

American (AMR)

AF:

0.000261

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.000207

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000633

Hom.:

Bravo

AF:

0.000106

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (5)

Hereditary cancer-predisposing syndrome (3)

Lynch syndrome 5 (3)

not provided (3)

Endometrial carcinoma (1)

Lynch syndrome (1)

MSH6-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.73

CADD

Benign

(source)

DANN

Benign

0.88

PhyloP100

1.1

PromoterAI

0.049

Neutral

(source)

Mutation Taster

=300/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over