rs201796910

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_020435.4(GJC2):​c.528G>A​(p.Glu176=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000679 in 1,533,678 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00094 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00065 ( 8 hom. )

Consequence

GJC2
NM_020435.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.948
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 Benign. Variant got -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 1-228158286-G-A is Benign according to our data. Variant chr1-228158286-G-A is described in ClinVar as [Benign]. Clinvar id is 458297.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-228158286-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-0.948 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00094 (143/152124) while in subpopulation EAS AF= 0.0151 (78/5160). AF 95% confidence interval is 0.0124. There are 2 homozygotes in gnomad4. There are 88 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GJC2NM_020435.4 linkuse as main transcriptc.528G>A p.Glu176= synonymous_variant 2/2 ENST00000366714.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GJC2ENST00000366714.3 linkuse as main transcriptc.528G>A p.Glu176= synonymous_variant 2/21 NM_020435.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000921
AC:
140
AN:
152008
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.000577
Gnomad EAS
AF:
0.0145
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.00161
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000324
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00172
AC:
236
AN:
137028
Hom.:
2
AF XY:
0.00178
AC XY:
133
AN XY:
74748
show subpopulations
Gnomad AFR exome
AF:
0.000275
Gnomad AMR exome
AF:
0.000285
Gnomad ASJ exome
AF:
0.000127
Gnomad EAS exome
AF:
0.0135
Gnomad SAS exome
AF:
0.00236
Gnomad FIN exome
AF:
0.00173
Gnomad NFE exome
AF:
0.000213
Gnomad OTH exome
AF:
0.000725
GnomAD4 exome
AF:
0.000650
AC:
898
AN:
1381554
Hom.:
8
Cov.:
36
AF XY:
0.000686
AC XY:
467
AN XY:
680844
show subpopulations
Gnomad4 AFR exome
AF:
0.000127
Gnomad4 AMR exome
AF:
0.000140
Gnomad4 ASJ exome
AF:
0.000161
Gnomad4 EAS exome
AF:
0.0109
Gnomad4 SAS exome
AF:
0.00190
Gnomad4 FIN exome
AF:
0.00184
Gnomad4 NFE exome
AF:
0.000207
Gnomad4 OTH exome
AF:
0.000923
GnomAD4 genome
AF:
0.000940
AC:
143
AN:
152124
Hom.:
2
Cov.:
32
AF XY:
0.00118
AC XY:
88
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.000241
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.000577
Gnomad4 EAS
AF:
0.0151
Gnomad4 SAS
AF:
0.00124
Gnomad4 FIN
AF:
0.00161
Gnomad4 NFE
AF:
0.000324
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000518
Hom.:
0
Bravo
AF:
0.00105
Asia WGS
AF:
0.0100
AC:
36
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Spastic paraplegia Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.60
DANN
Benign
0.32

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: rs201796910; hg19: chr1-228345987; API