rs35086888

Variant summary

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

The NM_004937.3(CTNS):​c.124G>A​(p.Val42Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00325 in 1,614,070 control chromosomes in the GnomAD database, including 167 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 79 hom., cov: 33)
Exomes 𝑓: 0.0018 ( 88 hom. )

Consequence

CTNS
NM_004937.3 missense

Scores

1
17

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts P:1B:13

Conservation

PhyloP100: 0.865
Variant links:
Genes affected
CTNS (HGNC:2518): (cystinosin, lysosomal cystine transporter) This gene encodes a seven-transmembrane domain protein that functions to transport cystine out of lysosomes. Its activity is driven by the H+ electrochemical gradient of the lysosomal membrane. Mutations in this gene cause cystinosis, a lysosomal storage disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.021084845).
BP6
Variant 17-3647506-G-A is Benign according to our data. Variant chr17-3647506-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 4447.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-3647506-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0578 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CTNSNM_004937.3 linkc.124G>A p.Val42Ile missense_variant Exon 4 of 12 ENST00000046640.9 NP_004928.2 O60931-1A0A0S2Z3K3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CTNSENST00000046640.9 linkc.124G>A p.Val42Ile missense_variant Exon 4 of 12 1 NM_004937.3 ENSP00000046640.4 O60931-1

Frequencies

GnomAD3 genomes
AF:
0.0170
AC:
2585
AN:
152170
Hom.:
79
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0598
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00537
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00862
GnomAD3 exomes
AF:
0.00444
AC:
1115
AN:
251340
Hom.:
27
AF XY:
0.00331
AC XY:
450
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.0613
Gnomad AMR exome
AF:
0.00228
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.000425
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00163
GnomAD4 exome
AF:
0.00182
AC:
2662
AN:
1461782
Hom.:
88
Cov.:
31
AF XY:
0.00155
AC XY:
1125
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.0662
Gnomad4 AMR exome
AF:
0.00241
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000510
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000603
Gnomad4 OTH exome
AF:
0.00351
GnomAD4 genome
AF:
0.0170
AC:
2591
AN:
152288
Hom.:
79
Cov.:
33
AF XY:
0.0164
AC XY:
1224
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.0597
Gnomad4 AMR
AF:
0.00536
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00853
Alfa
AF:
0.00415
Hom.:
27
Bravo
AF:
0.0194
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.0574
AC:
253
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00544
AC:
660
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Pathogenic:1Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Dec 10, 2021
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:3
Apr 20, 2019
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 15128704, 10556299, 20981092, 24123366) -

Oct 11, 2016
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Nephropathic cystinosis Benign:2
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cystinosis Benign:2
Sep 16, 2020
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Apr 19, 2023
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: research

- -

Cystinosis, atypical nephropathic Pathogenic:1
Dec 01, 1999
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

CTNS-related disorder Benign:1
Jul 01, 2019
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Ocular cystinosis Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Juvenile nephropathic cystinosis;C0950123:Inborn genetic diseases;C2931013:Ocular cystinosis Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.090
CADD
Benign
4.5
DANN
Uncertain
0.97
DEOGEN2
Benign
0.24
T;.;.;.;.
Eigen
Benign
-0.71
Eigen_PC
Benign
-0.62
FATHMM_MKL
Benign
0.55
D
LIST_S2
Benign
0.78
T;T;T;T;T
MetaRNN
Benign
0.021
T;T;T;T;T
MetaSVM
Benign
-0.58
T
MutationAssessor
Benign
0.93
L;L;.;.;.
PrimateAI
Benign
0.30
T
PROVEAN
Benign
0.060
N;N;N;N;.
REVEL
Benign
0.17
Sift
Benign
0.49
T;T;T;T;.
Sift4G
Benign
0.69
T;T;T;T;T
Polyphen
0.0090
B;B;.;.;.
Vest4
0.13
MVP
0.78
MPC
0.13
ClinPred
0.0054
T
GERP RS
3.0
Varity_R
0.018
gMVP
0.27

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: rs35086888; hg19: chr17-3550800; COSMIC: COSV99062025; API