rs201845569

Positions:

chr17-58212419-T-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_017777.4(MKS1):c.874A>G(p.Lys292Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000985 in 1,614,204 control chromosomes in the GnomAD database, including 1 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 0.00048 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000059 ( 1 hom. )

Consequence

MKS1
NM_017777.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.82

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:

MKS1 (HGNC:):

MKS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0133624375).

BP6

Variant 17-58212419-T-C is Benign according to our data. Variant chr17-58212419-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 260888.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MKS1	NM_017777.4 linkuse as main transcript	c.874A>G	p.Lys292Glu	missense_variant	9/18	ENST00000393119.7	NP_060247.2	Q9NXB0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MKS1	ENST00000393119.7 linkuse as main transcript	c.874A>G	p.Lys292Glu	missense_variant	9/18	1	NM_017777.4	ENSP00000376827.2		Q9NXB0-1

Frequencies

GnomAD3 genomes

AF:

0.000486

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00171

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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

GnomAD3 exomes

AF:

0.000176

AC:

AN:

249588

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135410

show subpopulations

Gnomad AFR exome

AF:

0.00271

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:

0.000330

GnomAD4 exome

AF:

0.0000588

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00212

Gnomad4 AMR exome

AF:

0.0000447

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:

0.00000270

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.000479

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.000483

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00168

Gnomad4 AMR

AF:

0.000196

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:

0.00

Alfa

AF:

0.000691

Hom.:

Bravo

AF:

0.000616

ESP6500AA

AF:

0.00324

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000207

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Aug 15, 2018	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Aug 20, 2024	In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

not specified

Uncertain:1Benign:1

Uncertain significance, no assertion criteria provided	clinical testing	Genetic Services Laboratory, University of Chicago	Jul 20, 2022	DNA sequence analysis of the MKS1 gene demonstrated a sequence change, c.874A>G, in exon 9 that results in an amino acid change, p.Lys292Glu. This sequence change has been described in the gnomAD database with a frequency of 0.23% in the African/African-American subpopulation (dbSNP rs201845569The p.Lys292Glu change affects a moderately conserved amino acid residue located in a domain of the MKS1 protein that is not known to be functional. The p.Lys292Glu substitution appears to be benign using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). This sequence change does not appear to have been previously described in individuals with MKS1-related disorders. Due to insufficient evidences and the lack of functional studies, the clinical significance of the p.Lys292Glu change remains unknown at this time. -
Likely benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

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 20, 2024

- -

Meckel syndrome, type 1

Benign:1

Likely benign, no assertion criteria provided

clinical testing

Natera, Inc.

Jan 02, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.17

T;T;.;T

Eigen

Benign

0.058

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.91

D;D;D;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.013

T;T;T;T

MetaSVM

Benign

-0.66

MutationAssessor

Uncertain

2.1

M;.;.;.

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-0.82

N;.;N;.

REVEL

Benign

0.17

Sift

Benign

0.42

T;.;T;.

Sift4G

Benign

0.91

T;T;T;T

Polyphen

0.0

B;.;.;.

Vest4

0.68

MVP

0.72

MPC

0.36

ClinPred

0.10

GERP RS

6.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.46

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