NM_001042432.2:c.375-19_375-4dupTCCCTTCTCACCCCCT

Variant names:

• chr16-28487544-G-GAGGGGGTGAGAAGGGA
• rs755313503
• NM_001042432.2:c.375-19_375-4dupTCCCTTCTCACCCCCT

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2 BP6_Very_Strong BS1

The NM_001042432.2(CLN3):​c.375-19_375-4dupTCCCTTCTCACCCCCT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,613,568 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00025 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00012 (0 hom.)
• Consequence: CLN3 NM_001042432.2 splice_region, intron
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: -0.198

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 Benign. Variant got -10 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 16-28487544-G-GAGGGGGTGAGAAGGGA is Benign according to our data. Variant chr16-28487544-G-GAGGGGGTGAGAAGGGA is described in ClinVar as [Likely_benign]. Clinvar id is 457952.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00025 (38/152092) while in subpopulation AMR AF= 0.00151 (23/15244). AF 95% confidence interval is 0.00103. There are 0 homozygotes in gnomad4. There are 26 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CLN3	NM_001042432.2	c.375-19_375-4dupTCCCTTCTCACCCCCT		splice_region_variant, intron_variant	Intron 6 of 15	ENST00000636147.2	NP_001035897.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CLN3	ENST00000636147.2	c.375-19_375-4dupTCCCTTCTCACCCCCT		splice_region_variant, intron_variant	Intron 6 of 15	1	NM_001042432.2	ENSP00000490105.1

Frequencies

GnomAD3 genomes AF: 0.000250 AC: 38 AN: 152092 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00151

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: 0.000221

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000917 AC: 23 AN: 250874 Hom.: 0 AF XY: 0.0000516 AC XY: 7 AN XY: 135678

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000261

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000106

Gnomad OTH exome AF: 0.000327

GnomAD4 exome AF: 0.000116 AC: 169 AN: 1461476 Hom.: 0 Cov.: 30 AF XY: 0.0000949 AC XY: 69 AN XY: 727078

Gnomad4 AFR exome AF: 0.0000597

Gnomad4 AMR exome AF: 0.000246

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: 0.000126

Gnomad4 OTH exome AF: 0.000248

GnomAD4 genome AF: 0.000250 AC: 38 AN: 152092 Hom.: 0 Cov.: 32 AF XY: 0.000350 AC XY: 26 AN XY: 74310

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00151

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000221

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000192 Hom.: 0

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Mar 15, 2018

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Inborn genetic diseases Benign:1

Jan 18, 2018

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Neuronal ceroid lipofuscinosis Benign:1

Dec 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs755313503; hg19: chr16-28498865;