rs769701646

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_017882.3(CLN6):​c.407G>C​(p.Arg136Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R136H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CLN6
NM_017882.3 missense

Scores

12
6
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.45

Publications

0 publications found
Variant links:
Genes affected
CLN6 (HGNC:2077): (CLN6 transmembrane ER 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]
CLN6 Gene-Disease associations (from GenCC):
  • ceroid lipofuscinosis, neuronal, 6A
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Myriad Women’s Health, Orphanet
  • ceroid lipofuscinosis, neuronal, 6B (Kufs type)
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, G2P, Orphanet
  • neuronal ceroid lipofuscinosis
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr15-68211754-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 402184.We mark this variant Likely_pathogenic, oryginal submission is: [Conflicting_classifications_of_pathogenicity].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.961

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CLN6NM_017882.3 linkc.407G>C p.Arg136Pro missense_variant Exon 4 of 7 ENST00000249806.11 NP_060352.1 Q9NWW5-1A0A024R601
CLN6NM_001411068.1 linkc.503G>C p.Arg168Pro missense_variant Exon 4 of 7 NP_001397997.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CLN6ENST00000249806.11 linkc.407G>C p.Arg136Pro missense_variant Exon 4 of 7 1 NM_017882.3 ENSP00000249806.5 Q9NWW5-1
ENSG00000260007ENST00000562767.2 linkc.84-14126G>C intron_variant Intron 1 of 2 3 ENSP00000456336.1 H3BRN7

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461760
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727174
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53302
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1112002
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.53
D
BayesDel_noAF
Pathogenic
0.52
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.96
D;.;T;.
Eigen
Pathogenic
0.74
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Pathogenic
0.68
D
MetaRNN
Pathogenic
0.96
D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.2
M;.;.;.
PhyloP100
7.4
PrimateAI
Uncertain
0.76
T
PROVEAN
Pathogenic
-5.2
D;D;.;D
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D;D;.;D
Sift4G
Uncertain
0.0030
D;D;.;D
Polyphen
1.0
D;.;.;.
Vest4
1.0
MutPred
0.83
.;Gain of loop (P = 0.0435);.;.;
MVP
0.98
MPC
1.2
ClinPred
1.0
D
GERP RS
5.1
Varity_R
0.97
gMVP
0.98
Mutation Taster
=9/91
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.23
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.23
Position offset: -13

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

Publications

Other links and lift over

dbSNP: rs769701646; hg19: chr15-68504092; API