rs386833714

Positions:

• chr16-28487734-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2 PP3_Strong PP5

The NM_001042432.2(CLN3):​c.302T>C​(p.Leu101Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CLN3 NM_001042432.2 missense
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.14

Genes affected

CLN3 (HGNC:2074): (CLN3 lysosomal/endosomal transmembrane protein, battenin) This gene encodes a protein that is involved in lysosomal function. Mutations in this, as well as other neuronal ceroid-lipofuscinosis (CLN) genes, cause neurodegenerative diseases commonly known as Batten disease or collectively known as neuronal ceroid lipofuscinoses (NCLs). Many alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]

ENSG00000261832 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.991
• PP5: Variant 16-28487734-A-G is Pathogenic according to our data. Variant chr16-28487734-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 56263.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr16-28487734-A-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CLN3	NM_001042432.2	c.302T>C	p.Leu101Pro	missense_variant	6/16	ENST00000636147.2	NP_001035897.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CLN3	ENST00000636147.2	c.302T>C	p.Leu101Pro	missense_variant	6/16	1	NM_001042432.2	ENSP00000490105.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1461076 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726794

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Neuronal ceroid lipofuscinosis 3 Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Juha Muilu Group; Institute for Molecular Medicine Finland (FIMM)

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.58	D
BayesDel_noAF	Pathogenic	0.59
CADD	Pathogenic	30
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.98	.;D;D;.;.;D;.;D;D;.;D;.;.;D
Eigen	Pathogenic	0.77
Eigen_PC	Pathogenic	0.68
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.97	D;.;.;D;.;.;D;.;D;D;D;.;D;D
M_CAP	Pathogenic	0.89	D
MetaRNN	Pathogenic	0.99	D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.6	.;H;H;.;.;.;.;H;.;H;.;.;H;.
PrimateAI	Uncertain	0.77	T
PROVEAN	Pathogenic	-6.4	.;.;D;.;.;D;D;D;.;D;.;.;D;D
REVEL	Pathogenic	0.93
Sift	Pathogenic	0.0	.;.;D;.;.;D;D;D;.;D;.;.;D;D
Sift4G	Pathogenic	0.0	.;.;.;D;.;D;D;D;.;D;.;.;D;.
Polyphen		1.0	.;D;D;.;.;.;.;D;.;D;D;.;D;.
Vest4		0.93, 0.92, 0.92, 0.93, 0.91, 0.94
MutPred		0.95		Loss of stability (P = 0.0454);Loss of stability (P = 0.0454);Loss of stability (P = 0.0454);Loss of stability (P = 0.0454);.;.;.;Loss of stability (P = 0.0454);.;Loss of stability (P = 0.0454);.;.;Loss of stability (P = 0.0454);.;
MVP		0.99
MPC		0.81
ClinPred		1.0	D
GERP RS		4.5
Varity_R		0.97
gMVP		0.95

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs386833714; hg19: chr16-28499055;