13-76992013-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000636183(CLN5):​c.-86C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000498 in 1,605,314 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

CLN5
ENST00000636183 5_prime_UTR_premature_start_codon_gain

Scores

1
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: -1.10
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09230983).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
use as main transcriptn.76992013C>T intergenic_region

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLN5ENST00000636183 linkuse as main transcriptc.-86C>T 5_prime_UTR_premature_start_codon_gain_variant 1/41 ENSP00000490181.2 O75503
CLN5ENST00000636183 linkuse as main transcriptc.-86C>T 5_prime_UTR_variant 1/41 ENSP00000490181.2 O75503
CLN5ENST00000636780.2 linkuse as main transcriptc.-86C>T upstream_gene_variant 5 ENSP00000489809.2 A0A1B0GTR6
CLN5ENST00000485938.4 linkuse as main transcriptc.-86C>T upstream_gene_variant 2 ENSP00000482959.3 A0A087WZY0

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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
GnomAD4 exome
AF:
0.00000482
AC:
7
AN:
1453114
Hom.:
0
Cov.:
34
AF XY:
0.00000554
AC XY:
4
AN XY:
722604
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000451
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
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
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Neuronal ceroid lipofuscinosis Uncertain:2
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Jul 09, 2020- -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 28, 2021This sequence change replaces proline with leucine at codon 21 of the CLN5 protein (p.Pro21Leu). The proline residue is weakly conserved and there is a moderate physicochemical difference between proline and leucine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with CLN5-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
1.1
DANN
Benign
0.85
DEOGEN2
Benign
0.056
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.30
T
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.092
T
MetaSVM
Benign
-1.1
T
PrimateAI
Uncertain
0.54
T
MutPred
0.20
Loss of relative solvent accessibility (P = 0.0306);
ClinPred
0.34
T
GERP RS
-2.8

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: rs988786332; hg19: chr13-77566148; API