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rs878853083

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_020435.4(GJC2):c.17G>A(p.Trp6Ter) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000295 in 1,015,386 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 Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.000016 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0000011 ( 0 hom. )

Consequence

GJC2
NM_020435.4 stop_gained

Scores

3
3
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 9.63
Variant links:
Genes affected
GJC2 (HGNC:17494): (gap junction protein gamma 2) This gene encodes a gap junction protein. Gap junction proteins are members of a large family of homologous connexins and comprise 4 transmembrane, 2 extracellular, and 3 cytoplasmic domains. This gene plays a key role in central myelination and is involved in peripheral myelination in humans. Defects in this gene are the cause of autosomal recessive Pelizaeus-Merzbacher-like disease-1. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 53 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 1-228157775-G-A is Pathogenic according to our data. Variant chr1-228157775-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 235629.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GJC2NM_020435.4 linkuse as main transcriptc.17G>A p.Trp6Ter stop_gained 2/2 ENST00000366714.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GJC2ENST00000366714.3 linkuse as main transcriptc.17G>A p.Trp6Ter stop_gained 2/21 NM_020435.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000165
AC:
2
AN:
121398
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000628
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
AF:
0.00000112
AC:
1
AN:
893988
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
442100
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:
0.00000145
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000165
AC:
2
AN:
121398
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
56136
show subpopulations
Gnomad4 AFR
AF:
0.0000628
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsJan 11, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.51
Cadd
Pathogenic
41
Dann
Uncertain
0.98
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
1.0
D
MutationTaster
Benign
1.0
D
Vest4
0.66
GERP RS
3.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs878853083; hg19: chr1-228345476; API