rs35464956

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_017777.4(MKS1):​c.1609C>T​(p.Arg537Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000088 in 1,613,632 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R537H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000087 ( 0 hom. )

Consequence

MKS1
NM_017777.4 missense

Scores

3
11
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 4.56
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06975323).
BP6
Variant 17-58206150-G-A is Benign according to our data. Variant chr17-58206150-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 220047.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MKS1NM_017777.4 linkuse as main transcriptc.1609C>T p.Arg537Cys missense_variant 18/18 ENST00000393119.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MKS1ENST00000393119.7 linkuse as main transcriptc.1609C>T p.Arg537Cys missense_variant 18/181 NM_017777.4 P1Q9NXB0-1

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152090
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00375
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000141
AC:
35
AN:
248178
Hom.:
0
AF XY:
0.000134
AC XY:
18
AN XY:
134808
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00299
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000267
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.0000869
AC:
127
AN:
1461542
Hom.:
0
Cov.:
32
AF XY:
0.0000880
AC XY:
64
AN XY:
727078
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00364
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.000215
GnomAD4 genome
AF:
0.0000986
AC:
15
AN:
152090
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00375
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000324
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000243
AC:
2
ExAC
AF:
0.0000993
AC:
12
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 13;C3714506:Meckel syndrome, type 1;C4310705:Joubert syndrome 28 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylJan 03, 2017- -
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 16, 2024- -
Meckel syndrome, type 1 Benign:1
Likely benign, no assertion criteria providedclinical testingNatera, Inc.May 04, 2020- -
MKS1-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesApr 20, 2022This variant is classified as likely 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
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.032
T
BayesDel_noAF
Benign
-0.10
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.77
D;.
Eigen
Uncertain
0.66
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.070
T;T
MetaSVM
Uncertain
-0.014
T
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-3.7
D;D
REVEL
Uncertain
0.42
Sift
Uncertain
0.0010
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;.
Vest4
0.28
MVP
0.87
MPC
0.99
ClinPred
0.67
D
GERP RS
5.3
Varity_R
0.38
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.

Other links and lift over

dbSNP: rs35464956; hg19: chr17-56283511; COSMIC: COSV56596429; COSMIC: COSV56596429; API