15-68229524-C-T

Position:

chr15-68229524-C-T

Variant summary

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

The NM_017882.3(CLN6):c.61G>A(p.Gly21Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000204 in 1,467,088 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)

Exomes 𝑓: 7.6e-7 ( 0 hom. )

Consequence

CLN6
NM_017882.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.360

Variant links:

Genes affected

CLN6 (HGNC:2077): (CLN6 transmembrane ER 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]

CLN6 links:

ENSG00000260007 (HGNC:):

ENSG00000260007 links:

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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=0.16947672).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CLN6	NM_017882.3 linkuse as main transcript	c.61G>A	p.Gly21Ser	missense_variant	1/7	ENST00000249806.11	NP_060352.1	Q9NWW5-1A0A024R601
CLN6	NM_001411068.1 linkuse as main transcript	c.180-10874G>A		intron_variant			NP_001397997.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CLN6	ENST00000249806.11 linkuse as main transcript	c.61G>A	p.Gly21Ser	missense_variant	1/7	1	NM_017882.3	ENSP00000249806.5		Q9NWW5-1
ENSG00000260007	ENST00000562767.2 linkuse as main transcript	c.61G>A	p.Gly21Ser	missense_variant	1/3	3		ENSP00000456336.1		H3BRN7

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151970

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

7.60e-7

AC:

AN:

1315118

Hom.:

Cov.:

AF XY:

0.00000154

AC XY:

AN XY:

648404

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.56e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151970

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74252

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000656

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

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Neuronal ceroid lipofuscinosis

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 09, 2022

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 21 of the CLN6 protein (p.Gly21Ser). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CLN6-related conditions. ClinVar contains an entry for this variant (Variation ID: 583137). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The serine 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

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.067

BayesDel_noAF

Benign

-0.14

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.14

.;T;T;T;T;T;.;.

Eigen

Benign

-0.86

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.40

LIST_S2

Benign

0.83

T;T;T;T;T;T;T;T

M_CAP

Pathogenic

0.89

MetaRNN

Benign

0.17

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.42

MutationAssessor

Benign

0.81

.;L;.;.;.;.;.;.

PrimateAI

Uncertain

0.77

PROVEAN

Pathogenic

-6.0

D;N;N;N;.;.;N;.

REVEL

Benign

0.13

Sift

Benign

0.88

.;T;D;T;.;.;T;.

Sift4G

Pathogenic

0.0

D;T;D;T;.;.;T;.

Polyphen

0.0020

.;B;.;.;.;.;.;.

Vest4

0.20

MutPred

0.18

Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);Gain of glycosylation at G21 (P = 0.0772);

MVP

0.62

MPC

0.086

ClinPred

0.51

GERP RS

2.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.054

gMVP

0.30

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over