rs200944853

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_000179.3(MSH6):​c.16A>C​(p.Thr6Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,611,690 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T6I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MSH6
NM_000179.3 missense

Scores

4
9
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 1.73

Publications

2 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]
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MSH6
NM_000179.3
MANE Select
c.16A>Cp.Thr6Pro
missense
Exon 1 of 10NP_000170.1P52701-1
MSH6
NM_001406795.1
c.16A>Cp.Thr6Pro
missense
Exon 1 of 11NP_001393724.1
MSH6
NM_001406813.1
c.16A>Cp.Thr6Pro
missense
Exon 1 of 10NP_001393742.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MSH6
ENST00000234420.11
TSL:1 MANE Select
c.16A>Cp.Thr6Pro
missense
Exon 1 of 10ENSP00000234420.5P52701-1
MSH6
ENST00000445503.5
TSL:1
n.16A>C
non_coding_transcript_exon
Exon 1 of 9ENSP00000405294.1F8WAX8
MSH6
ENST00000936511.1
c.16A>Cp.Thr6Pro
missense
Exon 1 of 10ENSP00000606570.1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152140
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000408
AC:
1
AN:
244914
AF XY:
0.00000747
show subpopulations
Gnomad AFR exome
AF:
0.0000663
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1459550
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726166
show subpopulations
African (AFR)
AF:
0.0000301
AC:
1
AN:
33248
American (AMR)
AF:
0.00
AC:
0
AN:
44670
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26090
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39572
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86108
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52308
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111460
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60328
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152140
Hom.:
0
Cov.:
33
AF XY:
0.0000673
AC XY:
5
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.000145
AC:
6
AN:
41442
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000534
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.00000827
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Hereditary cancer-predisposing syndrome (2)
-
2
-
not provided (2)
-
1
-
Endometrial carcinoma (1)
-
-
1
Hereditary nonpolyposis colorectal neoplasms (1)
-
1
-
Lynch syndrome (1)
-
1
-
MSH6-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Uncertain
0.063
T
BayesDel_noAF
Uncertain
0.040
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.35
T
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.69
T
M_CAP
Pathogenic
0.99
D
MetaRNN
Uncertain
0.51
D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Benign
0.81
L
PhyloP100
1.7
PrimateAI
Pathogenic
0.86
D
PROVEAN
Uncertain
-2.7
D
REVEL
Uncertain
0.56
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.42
MutPred
0.22
Loss of MoRF binding (P = 0.025)
MVP
0.92
ClinPred
0.65
D
GERP RS
4.1
PromoterAI
0.018
Neutral
Varity_R
0.81
gMVP
0.51
Mutation Taster
=59/41
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs200944853; hg19: chr2-48010388; API