rs28940575

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PP3_StrongPP5_Moderate

The NM_198586.3(NHLRC1):​c.76T>A​(p.Cys26Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000626 in 1,597,434 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 Pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

NHLRC1
NM_198586.3 missense

Scores

14
2
3

Clinical Significance

Pathogenic criteria provided, single submitter P:2O:1

Conservation

PhyloP100: 7.99
Variant links:
Genes affected
NHLRC1 (HGNC:21576): (NHL repeat containing E3 ubiquitin protein ligase 1) The protein encoded by this gene is a single subunit E3 ubiquitin ligase. Laforin is polyubiquitinated by the encoded protein. Defects in this intronless gene lead to an accumulation of laforin and onset of Lafora disease, also known as progressive myoclonic epilepsy type 2 (EPM2).[provided by RefSeq, Mar 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PM1
In a zinc_finger_region RING-type (size 46) in uniprot entity NHLC1_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_198586.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.99
PP5
Variant 6-18122531-A-T is Pathogenic according to our data. Variant chr6-18122531-A-T is described in ClinVar as [Pathogenic]. Clinvar id is 2586.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NHLRC1NM_198586.3 linkc.76T>A p.Cys26Ser missense_variant 1/1 ENST00000340650.6 NP_940988.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NHLRC1ENST00000340650.6 linkc.76T>A p.Cys26Ser missense_variant 1/16 NM_198586.3 ENSP00000345464.3 Q6VVB1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
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
GnomAD3 exomes
AF:
0.00000892
AC:
2
AN:
224274
Hom.:
0
AF XY:
0.0000161
AC XY:
2
AN XY:
124126
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000198
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000623
AC:
9
AN:
1445236
Hom.:
0
Cov.:
35
AF XY:
0.00000556
AC XY:
4
AN XY:
719368
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:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74362
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

Significance: Pathogenic
Submissions summary: Pathogenic:2Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Myoclonic epilepsy of Lafora 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMSep 01, 2006- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingGeneDxAug 31, 2020Published functional studies demonstrate a damaging effect (Gentry et al., 2005; Rao et al., 2010); Not observed at a significant frequency in large population cohorts (Lek et al., 2016); A different missense change at this residue (C26Y) has been reported in the Human Gene Mutation Database (Stenson et al., 2014); This variant is associated with the following publications: (PMID: 18029386, 17908927, 18617530, 17337485, 19892702, 15930137, 16950819, 12958597) -
Lafora disease Other:1
not provided, no classification providedliterature onlyGeneReviews-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.56
CADD
Pathogenic
30
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.76
D
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.68
T
M_CAP
Pathogenic
0.89
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Pathogenic
0.98
D
MutationAssessor
Pathogenic
3.5
M
PrimateAI
Pathogenic
0.92
D
PROVEAN
Benign
-2.1
N
REVEL
Pathogenic
0.86
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.96
MutPred
0.91
Gain of disorder (P = 0.0207);
MVP
0.98
MPC
1.4
ClinPred
0.97
D
GERP RS
3.9
Varity_R
0.98
gMVP
0.88

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

LitVar

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

Other links and lift over

dbSNP: rs28940575; hg19: chr6-18122762; API