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GeneBe

rs368120695

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_000251.3(MSH2):c.1276+16G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000162 in 1,609,152 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

MSH2
NM_000251.3 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -2.33
Variant links:
Genes affected
MSH2 (HGNC:7325): (mutS homolog 2) This locus is frequently mutated in hereditary nonpolyposis colon cancer (HNPCC). When cloned, it was discovered to be a human homolog of the E. coli mismatch repair gene mutS, consistent with the characteristic alterations in microsatellite sequences (RER+ phenotype) found in HNPCC. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 2-47429957-G-A is Benign according to our data. Variant chr2-47429957-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 372055.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MSH2NM_000251.3 linkuse as main transcriptc.1276+16G>A intron_variant ENST00000233146.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MSH2ENST00000233146.7 linkuse as main transcriptc.1276+16G>A intron_variant 1 NM_000251.3 P1P43246-1

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
151722
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000363
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000657
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:
0.000480
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
250210
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135318
show subpopulations
Gnomad AFR exome
AF:
0.000309
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000618
AC:
9
AN:
1457430
Hom.:
0
Cov.:
31
AF XY:
0.00000414
AC XY:
3
AN XY:
725126
show subpopulations
Gnomad4 AFR exome
AF:
0.000270
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
151722
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74080
show subpopulations
Gnomad4 AFR
AF:
0.000363
Gnomad4 AMR
AF:
0.0000657
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000480
Bravo
AF:
0.000132

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpDec 01, 2016Variant summary: The MSH2 c.1276+16G>A variant involves the alteration of a non-conserved intronic nucleotide. Mutation Taster predicts a benign outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. ESEfinder also predicts no effect in binding sites for ESEs. However, these predictions have yet to be confirmed by functional studies. This variant was found in 2/117144 control chromosomes from ExAC at a frequency of 0.0000171, which does not exceed the estimated maximal expected allele frequency of a pathogenic MSH2 variant (0.0005683). The variant was only found in African subpopulation. The variant of interest has not, to our knowledge, been reported in affected individuals via publications and/or reputable databases/clinical diagnostic laboratories, nor evaluated for functional impact by in vivo/vitro studies. Because of the absence of clinical information and the lack of functional studies, the variant is classified as a variant of uncertain significance (VUS) until additional information becomes available. -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxAug 17, 2015This 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. -
Lynch syndrome 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingCounsylNov 02, 2016- -
Hereditary nonpolyposis colorectal neoplasms Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 19, 2024- -
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthMay 10, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
Cadd
Benign
0.76
Dann
Benign
0.20

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs368120695; hg19: chr2-47657096; API