CLN3 p.Asp123Tyr

Variant names:

• chr16-28487469-C-A
• rs779918787
• ENST00000357806.11:c.367G>T
• CLN3 p.Asp123Tyr

Your query was ambiguous. Multiple possible variants found:

• chr16-28487469-C-A
• chr16-28487467-GTC-ATA

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PM2 BP6_Very_Strong

The ENST00000357806.11(CLN3):​c.367G>T​(p.Asp123Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,461,602 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D123N) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000015 (0 hom.)
• Consequence: CLN3 ENST00000357806.11 missense
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 0.269
• Publications: 1 publications found

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]

CLN3 Gene-Disease associations (from GenCC):

• inherited retinal dystrophy

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• neuronal ceroid lipofuscinosis

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• neuronal ceroid lipofuscinosis 3

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Myriad Women's Health

ENSG00000261832 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 16-28487469-C-A is Benign according to our data. Variant chr16-28487469-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 457953.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000357806.11. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLN3	NM_001042432.2	MANE Select	c.447G>T	p.Gly149Gly	synonymous	Exon 7 of 16	NP_001035897.1	Q13286-1
	CLN3	NM_000086.2		c.447G>T	p.Gly149Gly	synonymous	Exon 6 of 15	NP_000077.1	Q13286-1
	CLN3	NM_001286104.2		c.375G>T	p.Gly125Gly	synonymous	Exon 6 of 15	NP_001273033.1	Q13286-7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLN3	ENST00000357806.11	TSL:1	c.367G>T	p.Asp123Tyr	missense	Exon 5 of 12	ENSP00000350457.7	Q13286-6
	CLN3	ENST00000565778.6	TSL:1	c.295G>T	p.Asp99Tyr	missense	Exon 4 of 7	ENSP00000458015.1	O95090
	CLN3	ENST00000636147.2	TSL:1 MANE Select	c.447G>T	p.Gly149Gly	synonymous	Exon 7 of 16	ENSP00000490105.1	Q13286-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000199 AC: 5 AN: 251254 AF XY: 0.0000147

Gnomad AFR exome AF: 0.0000616

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000151 AC: 22 AN: 1461602 Hom.: 0 Cov.: 30 AF XY: 0.0000165 AC XY: 12 AN XY: 727134

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.0000447 AC: 2 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53394

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.0000171 AC: 19 AN: 1111774

Other (OTH) AF: 0.0000166 AC: 1 AN: 60386

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000312 Hom.: 0

Bravo AF: 0.0000189

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	1	Neuronal ceroid lipofuscinosis (1)
-	-	1	Neuronal ceroid lipofuscinosis 3 (1)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Pathogenic	0.19
CADD	Benign	16
DANN	Benign	0.97
DEOGEN2	Benign	0.0073	T
Eigen	Benign	-0.16
Eigen_PC	Benign	-0.28
FATHMM_MKL	Benign	0.046	N
LIST_S2	Benign	0.60	T
M_CAP	Benign	0.077	D
MetaRNN	Benign	0.13	T
MetaSVM	Uncertain	0.16	D
PhyloP100		0.27
PROVEAN	Benign	0.53	N
REVEL	Benign	0.25
Sift	Benign	0.064	T
Sift4G	Benign	0.56	T
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.49		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.49		Position offset: 6

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs779918787;

hg19: chr16-28498790;