rs587779302

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP6BS1BS2

The NM_000179.3(MSH6):​c.4001+11_4001+15dupAACTA variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000167 in 1,603,248 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 2 hom. )

Consequence

MSH6
NM_000179.3 intron

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:12

Conservation

PhyloP100: 0.199

Publications

3 publications found
Variant links:
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]
FBXO11 (HGNC:13590): (F-box protein 11) This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class. It can function as an arginine methyltransferase that symmetrically dimethylates arginine residues, and it acts as an adaptor protein to mediate the neddylation of p53, which leads to the suppression of p53 function. This gene is known to be down-regulated in melanocytes from patients with vitiligo, a skin disorder that results in depigmentation. Polymorphisms in this gene are associated with chronic otitis media with effusion and recurrent otitis media (COME/ROM), a hearing loss disorder, and the knockout of the homologous mouse gene results in the deaf mouse mutant Jeff (Jf), a single gene model of otitis media. Alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jun 2010]
FBXO11 Gene-Disease associations (from GenCC):
  • intellectual developmental disorder with dysmorphic facies and behavioral abnormalities
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP6
Variant 2-47806661-T-TAACTA is Benign according to our data. Variant chr2-47806661-T-TAACTA is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 89499.
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000161 (234/1451956) while in subpopulation SAS AF = 0.001 (86/85990). AF 95% confidence interval is 0.000829. There are 2 homozygotes in GnomAdExome4. There are 147 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MSH6NM_000179.3 linkc.4001+11_4001+15dupAACTA intron_variant Intron 9 of 9 ENST00000234420.11 NP_000170.1 P52701-1Q3SWU9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MSH6ENST00000234420.11 linkc.4001+11_4001+15dupAACTA intron_variant Intron 9 of 9 1 NM_000179.3 ENSP00000234420.5 P52701-1

Frequencies

GnomAD3 genomes
AF:
0.000218
AC:
33
AN:
151292
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000244
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000832
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000383
Gnomad OTH
AF:
0.000962
GnomAD2 exomes
AF:
0.000214
AC:
52
AN:
243512
AF XY:
0.000265
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000166
Gnomad FIN exome
AF:
0.000158
Gnomad NFE exome
AF:
0.000208
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000161
AC:
234
AN:
1451956
Hom.:
2
Cov.:
34
AF XY:
0.000203
AC XY:
147
AN XY:
722882
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33056
American (AMR)
AF:
0.00
AC:
0
AN:
44588
Ashkenazi Jewish (ASJ)
AF:
0.0000384
AC:
1
AN:
26070
East Asian (EAS)
AF:
0.0000505
AC:
2
AN:
39586
South Asian (SAS)
AF:
0.00100
AC:
86
AN:
85990
European-Finnish (FIN)
AF:
0.000121
AC:
6
AN:
49410
Middle Eastern (MID)
AF:
0.000521
AC:
3
AN:
5756
European-Non Finnish (NFE)
AF:
0.000117
AC:
130
AN:
1107398
Other (OTH)
AF:
0.0000998
AC:
6
AN:
60102
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
13
26
39
52
65
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000218
AC:
33
AN:
151292
Hom.:
0
Cov.:
32
AF XY:
0.000284
AC XY:
21
AN XY:
73854
show subpopulations
African (AFR)
AF:
0.0000244
AC:
1
AN:
40996
American (AMR)
AF:
0.00
AC:
0
AN:
15170
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.000832
AC:
4
AN:
4808
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10440
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000383
AC:
26
AN:
67912
Other (OTH)
AF:
0.000962
AC:
2
AN:
2080
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000727
Hom.:
0
Bravo
AF:
0.000102
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:12
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Benign:4
Nov 06, 2014
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Oct 01, 2014
GeneDx
Significance:Benign
Review Status:flagged submission
Collection Method:clinical testing

The variant is found in BR-OV-HEREDIC,HEREDICANCER panel(s). -

Feb 25, 2016
Color Diagnostics, LLC DBA Color Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 21, 2021
Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not provided Benign:3
Dec 01, 2016
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: The MSH6 c.4001+11_4001+15dupAACTA variant results into duplication of five non-conserved nucleotides in intron 9 at a region not widely known to involve in splicing. Mutation taster predicts a benign outcome for this variant. In addition, 5/5 splice prediction tools predict no significant impact on normal splicing. This variant was found in 29/111750 control chromosomes from ExAC at a frequency of 0.0002595, which is approximately 2 times the estimated maximal expected allele frequency of a pathogenic MSH6 variant (0.0001421), suggesting this variant is likely a benign polymorphism. In addition, multiple clinical diagnostic laboratories have classified this variant as likely benign/benign. The variant of interest has not, to our knowledge, been reported in affected individuals in literature. Taken together, this variant is classified as Benign. -

Mar 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

MSH6: BP4, BS1 -

Mar 03, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Lynch syndrome Uncertain:1Benign:1
-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

The MSH6 c.4001+11_4001+15dup variant was not identified in the literature nor was it identified in the UMD-LSDB database. The variant was identified in dbSNP (ID: rs730882138) as "With Likely benign, other allele" and ClinVar (classified as likely benign by Invitae, Counsyl and two other submitters). The variant was identified in control databases in 70 of 269486 chromosomes at a frequency of 0.0003, increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: South Asian in 23 of 30492 chromosomes (freq: 0.0008), European in 41 of 123358 chromosomes (freq: 0.0003), East Asian in 3 of 18612 chromosomes (freq: 0.0002), and Finnish in 3 of 23088 chromosomes (freq: 0.0001), while the variant was not observed in the African, Ashkenazi Jewish, Latino, or Other populations. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -

Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Lynch syndrome 5 Benign:1
Feb 02, 2018
Counsyl
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Hereditary nonpolyposis colon cancer Benign:1
Aug 22, 2023
Mendelics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary nonpolyposis colorectal neoplasms Benign:1
Jan 26, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
0.20
Mutation Taster
=100/0
polymorphism

Splicing

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

Publications

Other links and lift over

dbSNP: rs587779302; hg19: chr2-48033800; API