chr16-28477593-T-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_001042432.2(CLN3):c.1240A>C(p.Ile414Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I414V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

CLN3
NM_001042432.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.512

Publications

2 publications found

Variant links:

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: Orphanet, Ambry Genetics, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), Myriad Women’s Health

CLN3 links:

ENSG00000261832 (HGNC:):

ENSG00000261832 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_001042432.2

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.21608019).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001042432.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CLN3	NM_001042432.2	MANE Select	c.1240A>C	p.Ile414Leu	missense	Exon 16 of 16	NP_001035897.1
CLN3	NM_000086.2		c.1240A>C	p.Ile414Leu	missense	Exon 15 of 15	NP_000077.1
CLN3	NM_001286104.2		c.1168A>C	p.Ile390Leu	missense	Exon 15 of 15	NP_001273033.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CLN3	ENST00000636147.2	TSL:1 MANE Select	c.1240A>C	p.Ile414Leu	missense	Exon 16 of 16	ENSP00000490105.1
CLN3	ENST00000359984.12	TSL:1	c.1240A>C	p.Ile414Leu	missense	Exon 15 of 15	ENSP00000353073.9
CLN3	ENST00000565316.6	TSL:1	c.1189A>C	p.Ile397Leu	missense	Exon 14 of 14	ENSP00000456117.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152018

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152136

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74398

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41474

American (AMR)

AF:

0.0000654

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Uncertain

0.099

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Uncertain

0.60

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.70

LIST_S2

Uncertain

0.87

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.22

MetaSVM

Uncertain

0.33

MutationAssessor

Uncertain

2.2

PhyloP100

0.51

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.93

REVEL

Uncertain

0.40

Sift

Benign

0.31

Sift4G

Benign

0.46

Polyphen

0.040

Vest4

0.34

MutPred

0.51

Gain of catalytic residue at I414 (P = 0.0228)

MVP

0.70

MPC

0.20

ClinPred

0.34

GERP RS

3.9

Varity_R

0.18

gMVP

0.47

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over