rs146198681

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017882.3(CLN6):​c.100G>C​(p.Ala34Pro) 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 152,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. A34T) has been classified as Uncertain significance.

Frequency

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

Consequence

CLN6
NM_017882.3 missense

Scores

2
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.179

Publications

7 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: 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=0.068244636).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CLN6NM_017882.3 linkc.100G>C p.Ala34Pro missense_variant Exon 2 of 7 ENST00000249806.11 NP_060352.1
CLN6NM_001411068.1 linkc.196G>C p.Ala66Pro missense_variant Exon 2 of 7 NP_001397997.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CLN6ENST00000249806.11 linkc.100G>C p.Ala34Pro missense_variant Exon 2 of 7 1 NM_017882.3 ENSP00000249806.5
ENSG00000260007ENST00000562767.2 linkc.83+10868G>C intron_variant Intron 1 of 2 3 ENSP00000456336.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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
Cov.:
31
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74300
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000242
AC:
1
AN:
41400
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:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
⚠️ 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.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.080
BayesDel_addAF
Benign
-0.053
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
5.2
DANN
Benign
0.68
DEOGEN2
Uncertain
0.60
D;T;.;T;T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.20
N
LIST_S2
Benign
0.64
T;T;T;T;T;T
M_CAP
Benign
0.066
D
MetaRNN
Benign
0.068
T;T;T;T;T;T
MetaSVM
Benign
-0.43
T
MutationAssessor
Benign
-0.20
N;.;.;.;.;.
PhyloP100
-0.18
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-1.5
N;N;N;.;.;N
REVEL
Benign
0.28
Sift
Benign
0.22
T;T;T;.;.;T
Sift4G
Benign
0.29
T;T;T;.;.;T
Polyphen
0.0010
B;.;.;.;.;.
Vest4
0.090
MutPred
0.18
.;.;Gain of relative solvent accessibility (P = 0.0479);.;.;.;
MVP
0.74
MPC
0.66
ClinPred
0.24
T
GERP RS
3.4
Varity_R
0.11
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs146198681; hg19: chr15-68510972; API