rs121908079

Positions:

• chr15-68211288-CATA-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PM4_Supporting PP5

The NM_017882.3(CLN6):​c.514_516del​(p.Tyr172del) variant causes a inframe deletion change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. Y172Y) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CLN6 NM_017882.3 inframe_deletion
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 6.89

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_017882.3. Strenght limited to Supporting due to length of the change: 1aa.
• PP5: Variant 15-68211288-CATA-C is Pathogenic according to our data. Variant chr15-68211288-CATA-C is described in ClinVar as [Pathogenic]. Clinvar id is 4078.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CLN6	NM_017882.3	c.514_516del	p.Tyr172del	inframe_deletion	5/7	ENST00000249806.11
CLN6	NM_001411068.1	c.610_612del	p.Tyr204del	inframe_deletion	5/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CLN6	ENST00000249806.11	c.514_516del	p.Tyr172del	inframe_deletion	5/7	1	NM_017882.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Ceroid lipofuscinosis, neuronal, 6A Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Feb 01, 2002

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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

Other links and lift over

dbSNP: rs121908079; hg19: chr15-68503626;