rs863224859

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_018941.4(CLN8):​c.212C>T​(p.Ala71Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,750 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as no classification for the single variant (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CLN8
NM_018941.4 missense

Scores

4
13
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.75
Variant links:
Genes affected
CLN8 (HGNC:2079): (CLN8 transmembrane ER and ERGIC protein) This gene encodes a transmembrane protein belonging to a family of proteins containing TLC domains, which are postulated to function in lipid synthesis, transport, or sensing. The protein localizes to the endoplasmic reticulum (ER), and may recycle between the ER and ER-Golgi intermediate compartment. Mutations in this gene are associated with a disorder characterized by progressive epilepsy with cognitive disabilities (EPMR), which is a subtype of neuronal ceroid lipofuscinoses (NCL). Patients with mutations in this gene have altered levels of sphingolipid and phospholipids in the brain. [provided by RefSeq, Jul 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a domain TLC (size 200) in uniprot entity CLN8_HUMAN there are 17 pathogenic changes around while only 5 benign (77%) in NM_018941.4
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLN8NM_018941.4 linkuse as main transcriptc.212C>T p.Ala71Val missense_variant 2/3 ENST00000331222.6 NP_061764.2 Q9UBY8A0A024QZ57

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLN8ENST00000331222.6 linkuse as main transcriptc.212C>T p.Ala71Val missense_variant 2/31 NM_018941.4 ENSP00000328182.4 Q9UBY8
KBTBD11-OT1ENST00000635855.1 linkuse as main transcriptn.212C>T non_coding_transcript_exon_variant 2/305 ENSP00000489726.1 A0A1B0GTJ5

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
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:
0.00000137
AC:
2
AN:
1461554
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727016
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152196
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.77
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.12
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.60
.;D;D;D;D;.;D;.;.
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;.;.;.;.;D;.;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Uncertain
0.74
D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.37
D
MutationAssessor
Uncertain
2.5
.;M;M;M;M;.;M;.;.
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.74
.;N;.;.;.;.;.;.;.
REVEL
Uncertain
0.64
Sift
Uncertain
0.010
.;D;.;.;.;.;.;.;.
Sift4G
Uncertain
0.0080
D;D;.;.;.;.;.;D;.
Polyphen
1.0
.;D;D;D;D;.;D;.;.
Vest4
0.61
MutPred
0.67
Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);Gain of MoRF binding (P = 0.1842);
MVP
0.93
MPC
0.28
ClinPred
0.87
D
GERP RS
5.1
Varity_R
0.13
gMVP
0.62

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs863224859; hg19: chr8-1719432; API