13-76992003-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The ENST00000636183.2(CLN5):​c.-96C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000362 in 1,602,384 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000038 ( 1 hom. )

Consequence

CLN5
ENST00000636183.2 5_prime_UTR

Scores

1
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: -1.14
Variant links:
Genes affected
CLN5 (HGNC:2076): (CLN5 intracellular trafficking protein) This gene is one of eight which have been associated with neuronal ceroid lipofuscinoses (NCL). Also referred to as Batten disease, NCL comprises a class of autosomal recessive, neurodegenerative disorders affecting children. The genes responsible likely encode proteins involved in the degradation of post-translationally modified proteins in lysosomes. The primary defect in NCL disorders is thought to be associated with lysosomal storage function.[provided by RefSeq, Oct 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLN5ENST00000636183.2 linkuse as main transcriptc.-96C>T 5_prime_UTR_variant 1/41 ENSP00000490181 P1
CLN5ENST00000636780.2 linkuse as main transcript upstream_gene_variant 5 ENSP00000489809

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000791
AC:
17
AN:
214828
Hom.:
1
AF XY:
0.000109
AC XY:
13
AN XY:
119528
show subpopulations
Gnomad AFR exome
AF:
0.000165
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000484
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000108
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000379
AC:
55
AN:
1450204
Hom.:
1
Cov.:
34
AF XY:
0.0000499
AC XY:
36
AN XY:
721034
show subpopulations
Gnomad4 AFR exome
AF:
0.0000901
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000446
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000305
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000598
AC:
7

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Neuronal ceroid lipofuscinosis 5 Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabSep 05, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsDec 10, 2021- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJun 17, 2019Has not been previously published as pathogenic or benign to our knowledge -
Neuronal ceroid lipofuscinosis Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 24, 2022This sequence change creates a premature translational stop signal (p.Gln18*) in the CLN5 gene. However, it is currently unclear if variants that occur in this region of the gene cause disease. This variant is present in population databases (rs773979248, gnomAD 0.05%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with CLN5-related conditions. ClinVar contains an entry for this variant (Variation ID: 421520). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Benign
-0.20
CADD
Benign
0.67
DANN
Benign
0.86
Eigen
Benign
-0.52
Eigen_PC
Benign
-0.91
FATHMM_MKL
Benign
0.050
N
MutationTaster
Benign
1.0
A
GERP RS
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.62
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.62
Position offset: -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: rs773979248; hg19: chr13-77566138; API