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
Consequence
NM_000179.3 intron
Scores
Clinical Significance
Conservation
Publications
- intellectual developmental disorder with dysmorphic facies and behavioral abnormalitiesInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
Genome browser will be placed here
ACMG classification
Our verdict: Benign. The variant received -9 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000218 AC: 33AN: 151292Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000214 AC: 52AN: 243512 AF XY: 0.000265 show subpopulations
GnomAD4 exome AF: 0.000161 AC: 234AN: 1451956Hom.: 2 Cov.: 34 AF XY: 0.000203 AC XY: 147AN XY: 722882 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000218 AC: 33AN: 151292Hom.: 0 Cov.: 32 AF XY: 0.000284 AC XY: 21AN XY: 73854 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Benign:4
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. -
The variant is found in BR-OV-HEREDIC,HEREDICANCER panel(s). -
- -
- -
not provided Benign:3
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. -
MSH6: BP4, BS1 -
- -
Lynch syndrome Uncertain:1Benign:1
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. -
- -
not specified Benign:1
- -
Lynch syndrome 5 Benign:1
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
- -
Hereditary nonpolyposis colorectal neoplasms Benign:1
- -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at