15-68207485-G-A

Position:

chr15-68207485-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_017882.3(CLN6):c.*655C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0028 in 162,404 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0030 ( 3 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

CLN6
NM_017882.3 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.204

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 15-68207485-G-A is Benign according to our data. Variant chr15-68207485-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 885099.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00297 (452/152280) while in subpopulation AFR AF= 0.00943 (392/41560). AF 95% confidence interval is 0.00866. There are 3 homozygotes in gnomad4. There are 219 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CLN6	NM_017882.3 linkuse as main transcript	c.*655C>T		3_prime_UTR_variant	7/7	ENST00000249806.11	NP_060352.1
CLN6	NM_001411068.1 linkuse as main transcript	c.*655C>T		3_prime_UTR_variant	7/7		NP_001397997.1

Ensembl

Gene	Transcript	HGVSc	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CLN6	ENST00000249806.11 linkuse as main transcript	c.*655C>T	3_prime_UTR_variant	7/7	1	NM_017882.3	ENSP00000249806	P1	Q9NWW5-1
CLN6	ENST00000638076.1 linkuse as main transcript	c.*1194C>T	3_prime_UTR_variant, NMD_transcript_variant	7/7	1		ENSP00000490373
CLN6	ENST00000636964.1 linkuse as main transcript	n.3119C>T	non_coding_transcript_exon_variant	3/3	2

Frequencies

GnomAD3 genomes

AF:

0.00298

AC:

453

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00948

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00196

Gnomad ASJ

AF:

0.00173

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00430

GnomAD4 exome

AF:

0.000198

AC:

AN:

10124

Hom.:

Cov.:

AF XY:

0.000185

AC XY:

AN XY:

5394

show subpopulations

Gnomad4 AFR exome

AF:

0.00943

Gnomad4 AMR exome

AF:

0.000393

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00297

AC:

452

AN:

152280

Hom.:

Cov.:

AF XY:

0.00294

AC XY:

219

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.00943

Gnomad4 AMR

AF:

0.00196

Gnomad4 ASJ

AF:

0.00173

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.00425

Alfa

AF:

0.00243

Hom.:

Bravo

AF:

0.00337

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Neuronal ceroid lipofuscinosis

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

2.0

DANN

Benign

0.61

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

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.

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