rs886038378

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM1PM2BP4_ModerateBP6_Moderate

The NM_004937.3(CTNS):ā€‹c.554A>Gā€‹(p.Tyr185Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,494 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 Likely benign (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y185F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 28)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

CTNS
NM_004937.3 missense

Scores

7
12

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.282
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]
CTNS-AS1 (HGNC:56090): (CTNS antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_004937.3
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.20650437).
BP6
Variant 17-3656579-A-G is Benign according to our data. Variant chr17-3656579-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 257155.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CTNSNM_004937.3 linkuse as main transcriptc.554A>G p.Tyr185Cys missense_variant 8/12 ENST00000046640.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CTNSENST00000046640.9 linkuse as main transcriptc.554A>G p.Tyr185Cys missense_variant 8/121 NM_004937.3 P1O60931-1
CTNS-AS1ENST00000575741.1 linkuse as main transcriptn.532+277T>C intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
28
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461494
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727046
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
28

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
13
DANN
Benign
0.87
DEOGEN2
Uncertain
0.76
D;.
Eigen
Benign
-0.87
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.20
N
LIST_S2
Benign
0.82
T;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.21
T;T
MetaSVM
Uncertain
0.21
D
MutationAssessor
Benign
1.9
L;L
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.25
T
PROVEAN
Uncertain
-2.7
D;D
REVEL
Uncertain
0.41
Sift
Benign
0.17
T;T
Sift4G
Benign
0.17
T;T
Polyphen
0.095
B;B
Vest4
0.33
MutPred
0.29
Gain of catalytic residue at P184 (P = 0.0153);Gain of catalytic residue at P184 (P = 0.0153);
MVP
0.75
MPC
0.24
ClinPred
0.068
T
GERP RS
-1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.093
gMVP
0.77

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: rs886038378; hg19: chr17-3559873; API