rs369488349

Positions:

chr17-58219204-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_017777.4(MKS1):c.27C>T(p.Asp9Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00135 in 1,551,140 control chromosomes in the GnomAD database, including 2 homozygotes. 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 0.00079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 2 hom. )

Consequence

MKS1
NM_017777.4 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:7

Conservation

PhyloP100: 1.21

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]

MKS1 links:

LPO (HGNC:6678): (lactoperoxidase) This gene encodes a member of the peroxidase family of proteins. The encoded preproprotein is proteolytically processed to generate the mature enzyme. Following its secretion from salivary, mammary, and other mucosal glands, this enzyme catalyzes the generation of the antimicrobial substance hypothiocyanous acid. This gene is present in a gene cluster on chromosome 17. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

LPO links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.66).

BP6

Variant 17-58219204-G-A is Benign according to our data. Variant chr17-58219204-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 324171.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=3, Likely_benign=3}. Variant chr17-58219204-G-A is described in Lovd as [Likely_benign].

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MKS1	NM_017777.4 link	c.27C>T	p.Asp9Asp	synonymous_variant	1/18	ENST00000393119.7	NP_060247.2	Q9NXB0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MKS1	ENST00000393119.7 link	c.27C>T	p.Asp9Asp	synonymous_variant	1/18	1	NM_017777.4	ENSP00000376827.2		Q9NXB0-1

Frequencies

GnomAD3 genomes

AF:

0.000795

AC:

121

AN:

152264

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00151

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.000724

AC:

110

AN:

151962

Hom.:

AF XY:

0.000715

AC XY:

AN XY:

81076

show subpopulations

Gnomad AFR exome

AF:

0.000134

Gnomad AMR exome

AF:

0.000162

Gnomad ASJ exome

AF:

0.000118

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000527

Gnomad FIN exome

AF:

0.0000664

Gnomad NFE exome

AF:

0.00154

Gnomad OTH exome

AF:

0.000233

GnomAD4 exome

AF:

0.00141

AC:

1974

AN:

1398758

Hom.:

Cov.:

AF XY:

0.00145

AC XY:

1001

AN XY:

689944

show subpopulations

Gnomad4 AFR exome

AF:

0.000285

Gnomad4 AMR exome

AF:

0.000140

Gnomad4 ASJ exome

AF:

0.000199

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000505

Gnomad4 FIN exome

AF:

0.000205

Gnomad4 NFE exome

AF:

0.00172

Gnomad4 OTH exome

AF:

0.000793

GnomAD4 genome

AF:

0.000794

AC:

121

AN:

152382

Hom.:

Cov.:

AF XY:

0.000550

AC XY:

AN XY:

74522

show subpopulations

Gnomad4 AFR

AF:

0.000240

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00151

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.00141

Hom.:

Bravo

AF:

0.000876

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:5

Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 10, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jul 09, 2018	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Nov 01, 2024	MKS1: BP4, BP7 -

Meckel syndrome, type 1

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Likely benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -

Bardet-Biedl syndrome 13

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.66

CADD

Benign

DANN

Benign

0.91

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over