rs74315312

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PP3_StrongPP5

The NM_020435.4(GJC2):​c.268C>T​(p.Pro90Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000155 in 1,611,020 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 (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

GJC2
NM_020435.4 missense

Scores

15
2
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.91
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 Uncertain_significance. Variant got 5 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.993
PP5
Variant 1-228158026-C-T is Pathogenic according to our data. Variant chr1-228158026-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 2072.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr1-228158026-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GJC2NM_020435.4 linkuse as main transcriptc.268C>T p.Pro90Ser missense_variant 2/2 ENST00000366714.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GJC2ENST00000366714.3 linkuse as main transcriptc.268C>T p.Pro90Ser missense_variant 2/21 NM_020435.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151722
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
GnomAD3 exomes
AF:
0.00000412
AC:
1
AN:
242738
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
132604
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:
0.00000930
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1459298
Hom.:
0
Cov.:
37
AF XY:
0.0000193
AC XY:
14
AN XY:
725960
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:
0.0000216
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151722
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74104
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
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000827
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Hypomyelinating leukodystrophy 2 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMApr 01, 2007- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.55
D
BayesDel_noAF
Pathogenic
0.56
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.96
D
Eigen
Uncertain
0.22
Eigen_PC
Benign
0.055
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Pathogenic
0.88
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.2
H
MutationTaster
Benign
1.0
A
PrimateAI
Pathogenic
0.88
D
PROVEAN
Pathogenic
-7.4
D
REVEL
Pathogenic
0.87
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.81
P
Vest4
0.83
MutPred
0.97
Gain of catalytic residue at P90 (P = 0.0069);
MVP
0.94
ClinPred
1.0
D
GERP RS
3.3
Varity_R
0.84
gMVP
0.99

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: rs74315312; hg19: chr1-228345727; API