15-68218595-G-A

Position:

• chr15-68218595-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_017882.3(CLN6):​c.139C>T​(p.Leu47Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,752 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CLN6 NM_017882.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1 O:1
• Conservation: PhyloP100: 6.42

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 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CLN6	NM_017882.3	c.139C>T	p.Leu47Phe	missense_variant	2/7	ENST00000249806.11	NP_060352.1
CLN6	NM_001411068.1	c.235C>T	p.Leu79Phe	missense_variant	2/7		NP_001397997.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CLN6	ENST00000249806.11	c.139C>T	p.Leu47Phe	missense_variant	2/7	1	NM_017882.3	ENSP00000249806	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461752 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727178

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

Ceroid lipofuscinosis, neuronal, 6B (Kufs type) Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

May 13, 2011

- -

Ceroid lipofuscinosis, neuronal, 6A Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Jan 17, 2018

- -

not provided Other:1

not provided, no classification provided

literature only

SNPedia

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.66
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.26
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.79	D;D;.;T;T;.
Eigen	Benign	0.082
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.92	D;D;D;D;D;D
M_CAP	Uncertain	0.14	D
MetaRNN	Uncertain	0.71	D;D;D;D;D;D
MetaSVM	Uncertain	0.44	D
MutationAssessor	Benign	1.7	L;.;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-2.5	D;D;D;.;.;D
REVEL	Pathogenic	0.68
Sift	Benign	0.14	T;T;T;.;.;T
Sift4G	Benign	0.25	T;T;T;.;.;T
Polyphen		0.099	B;.;.;.;.;.
Vest4		0.80
MutPred		0.37		.;.;Loss of helix (P = 0.1706);.;.;.;
MVP		0.93
MPC		1.1
ClinPred		0.95	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.33
gMVP		0.74

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

Other links and lift over

dbSNP: rs154774635; hg19: chr15-68510933;