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17-58206004-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_017777.4(MKS1):c.*75C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0988 in 1,550,200 control chromosomes in the GnomAD database, including 7,827 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.083 ( 586 hom., cov: 32)
Exomes 𝑓: 0.10 ( 7241 hom. )

Consequence

MKS1
NM_017777.4 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.0100
Variant links:
Genes affected
MKS1 (HGNC:7121): (MKS transition zone complex subunit 1) The protein encoded by this gene localizes to the basal body and is required for formation of the primary cilium in ciliated epithelial cells. Mutations in this gene result in Meckel syndrome type 1 and in Bardet-Biedl syndrome type 13. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 17-58206004-G-A is Benign according to our data. Variant chr17-58206004-G-A is described in ClinVar as [Benign]. Clinvar id is 324157.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.11 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MKS1NM_017777.4 linkuse as main transcriptc.*75C>T 3_prime_UTR_variant 18/18 ENST00000393119.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MKS1ENST00000393119.7 linkuse as main transcriptc.*75C>T 3_prime_UTR_variant 18/181 NM_017777.4 P1Q9NXB0-1

Frequencies

GnomAD3 genomes
AF:
0.0833
AC:
12671
AN:
152044
Hom.:
587
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0430
Gnomad AMI
AF:
0.0888
Gnomad AMR
AF:
0.0683
Gnomad ASJ
AF:
0.0876
Gnomad EAS
AF:
0.105
Gnomad SAS
AF:
0.118
Gnomad FIN
AF:
0.0963
Gnomad MID
AF:
0.0696
Gnomad NFE
AF:
0.105
Gnomad OTH
AF:
0.0909
GnomAD4 exome
AF:
0.100
AC:
140446
AN:
1398036
Hom.:
7241
Cov.:
32
AF XY:
0.101
AC XY:
69595
AN XY:
690208
show subpopulations
Gnomad4 AFR exome
AF:
0.0431
Gnomad4 AMR exome
AF:
0.0535
Gnomad4 ASJ exome
AF:
0.0810
Gnomad4 EAS exome
AF:
0.101
Gnomad4 SAS exome
AF:
0.112
Gnomad4 FIN exome
AF:
0.100
Gnomad4 NFE exome
AF:
0.104
Gnomad4 OTH exome
AF:
0.0958
GnomAD4 genome
AF:
0.0833
AC:
12672
AN:
152164
Hom.:
586
Cov.:
32
AF XY:
0.0849
AC XY:
6314
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.0429
Gnomad4 AMR
AF:
0.0682
Gnomad4 ASJ
AF:
0.0876
Gnomad4 EAS
AF:
0.106
Gnomad4 SAS
AF:
0.118
Gnomad4 FIN
AF:
0.0963
Gnomad4 NFE
AF:
0.105
Gnomad4 OTH
AF:
0.0904
Alfa
AF:
0.0573
Hom.:
94
Bravo
AF:
0.0789

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Meckel syndrome, type 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Bardet-Biedl syndrome 13 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 16, 2018- -
MKS1-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 20, 2023This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
Cadd
Benign
5.2
Dann
Benign
0.77

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs35184412; hg19: chr17-56283365; COSMIC: COSV56598953; COSMIC: COSV56598953; API