rs786205211

Variant names:

• chr13-76995076-C-T
• rs786205211
• NM_006493.4:c.187C>T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PM5 PP3 PP5

The NM_006493.4(CLN5):​c.187C>T​(p.Arg63Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,613,456 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R63P) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: CLN5 NM_006493.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:4 U:2
• Conservation: PhyloP100: 6.04
• Publications: 3 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]

ENSG00000283208 (HGNC:):

FBXL3 (HGNC:13599): (F-box and leucine rich repeat protein 3) This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbls class and, in addition to an F-box, contains several tandem leucine-rich repeats and is localized in the nucleus. [provided by RefSeq, Jul 2008]

FBXL3 Gene-Disease associations (from GenCC):

• intellectual disability, short stature, facial anomalies, and joint dislocations

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr13-76995077-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 56533.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.809
• PP5: Variant 13-76995076-C-T is Pathogenic according to our data. Variant chr13-76995076-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 190222.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006493.4. 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.187C>T	p.Arg63Cys	missense	Exon 2 of 4	NP_006484.2	O75503
	CLN5	NM_001366624.2		c.187C>T	p.Arg63Cys	missense	Exon 2 of 5	NP_001353553.1	A0A1B0GTR6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLN5	ENST00000377453.9	TSL:1 MANE Select	c.187C>T	p.Arg63Cys	missense	Exon 2 of 4	ENSP00000366673.5	O75503
	CLN5	ENST00000636183.2	TSL:1	c.187C>T	p.Arg63Cys	missense	Exon 2 of 4	ENSP00000490181.2	O75503
	ENSG00000283208	ENST00000638147.2	TSL:5	c.187C>T	p.Arg63Cys	missense	Exon 2 of 5	ENSP00000490953.2	A0A1B0GWJ7

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152174 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000684 AC: 10 AN: 1461282 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 726904

African (AFR) AF: 0.00 AC: 0 AN: 33438

American (AMR) AF: 0.0000224 AC: 1 AN: 44642

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26120

East Asian (EAS) AF: 0.00 AC: 0 AN: 39672

South Asian (SAS) AF: 0.00 AC: 0 AN: 86068

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000720 AC: 8 AN: 1111816

Other (OTH) AF: 0.0000166 AC: 1 AN: 60358

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152174 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74326

African (AFR) AF: 0.00 AC: 0 AN: 41446

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10596

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68042

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

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
3	1	-	Neuronal ceroid lipofuscinosis 5 (4)
-	1	-	Inborn genetic diseases (1)
1	-	-	Neuronal ceroid lipofuscinosis (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.90
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.39
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.51	D
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.96	D
M_CAP	Uncertain	0.25	D
MetaRNN	Pathogenic	0.81	D
MetaSVM	Pathogenic	0.84	D
MutationAssessor	Uncertain	2.4	M
PhyloP100		6.0
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-1.4	N
REVEL	Pathogenic	0.82
Sift	Uncertain	0.019	D
Polyphen		1.0	D
MutPred		0.70		Loss of disorder (P = 0.0215)
MVP		0.99
MPC		0.85
ClinPred		1.0	D
GERP RS		5.8
Varity_R		0.64
Mutation Taster		=9/91	disease causing (ClinVar)

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: rs786205211; hg19: chr13-77569211;