13-76992013-C-T

Variant names:

• chr13-76992013-C-T
• rs988786332
• ENST00000636183.2:c.-86C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000636183.2(CLN5):​c.-86C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000498 in 1,605,314 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: CLN5 ENST00000636183.2 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: -1.10
• Publications: 0 publications found

Genes affected

CLN5 (HGNC:2076): (CLN5 intracellular trafficking 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]

CLN5 Gene-Disease associations (from GenCC):

• neuronal ceroid lipofuscinosis

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• neuronal ceroid lipofuscinosis 5

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

ENSG00000283208 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09230983).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000636183.2. 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
	CLN5	NM_006493.4	MANE Select	c.-86C>T		upstream_gene	N/A	NP_006484.2	O75503
	CLN5	NM_001366624.2		c.-86C>T		upstream_gene	N/A	NP_001353553.1	A0A1B0GTR6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLN5	ENST00000636183.2	TSL:1	c.-86C>T		5_prime_UTR_premature_start_codon_gain	Exon 1 of 4	ENSP00000490181.2	O75503
	CLN5	ENST00000636183.2	TSL:1	c.-86C>T		5_prime_UTR	Exon 1 of 4	ENSP00000490181.2	O75503
	CLN5	ENST00000377453.9	TSL:1 MANE Select	c.-86C>T		upstream_gene	N/A	ENSP00000366673.5	O75503

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152200 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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 AF: 0.00000482 AC: 7 AN: 1453114 Hom.: 0 Cov.: 34 AF XY: 0.00000554 AC XY: 4 AN XY: 722604

African (AFR) AF: 0.0000300 AC: 1 AN: 33330

American (AMR) AF: 0.00 AC: 0 AN: 44192

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25920

East Asian (EAS) AF: 0.00 AC: 0 AN: 39452

South Asian (SAS) AF: 0.0000117 AC: 1 AN: 85428

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49578

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5490

European-Non Finnish (NFE) AF: 0.00000451 AC: 5 AN: 1109736

Other (OTH) AF: 0.00 AC: 0 AN: 59988

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152200 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74366

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000241 AC: 1 AN: 41450

American (AMR) AF: 0.00 AC: 0 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2094

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	2	-	Neuronal ceroid lipofuscinosis (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	1.1
DANN	Benign	0.85
DEOGEN2	Benign	0.056	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.037	N
LIST_S2	Benign	0.30	T
M_CAP	Benign	0.0039	T
MetaRNN	Benign	0.092	T
MetaSVM	Benign	-1.1	T
PhyloP100		-1.1
PrimateAI	Uncertain	0.54	T
MutPred		0.20		Loss of relative solvent accessibility (P = 0.0306)
ClinPred		0.34	T
GERP RS		-2.8
PromoterAI		0.15	Neutral

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

Other links and lift over

dbSNP: rs988786332; hg19: chr13-77566148;