13-20223371-A-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_001110219.3(GJB6):​c.110T>A​(p.Val37Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,882 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). Synonymous variant affecting the same amino acid position (i.e. V37V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GJB6
NM_001110219.3 missense

Scores

11
7
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.81
Variant links:
Genes affected
GJB6 (HGNC:4288): (gap junction protein beta 6) Gap junctions allow the transport of ions and metabolites between the cytoplasm of adjacent cells. They are formed by two hemichannels, made up of six connexin proteins assembled in groups. Each connexin protein has four transmembrane segments, two extracellular loops, a cytoplasmic loop formed between the two inner transmembrane segments, and the N- and C-terminus both being in the cytoplasm. The specificity of the gap junction is determined by which connexin proteins comprise the hemichannel. In the past, connexin protein names were based on their molecular weight, however the new nomenclature uses sequential numbers based on which form (alpha or beta) of the gap junction is present. This gene encodes one of the connexin proteins. Mutations in this gene have been found in some forms of deafness and in some families with hidrotic ectodermal dysplasia. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.991
PP5
Variant 13-20223371-A-T is Pathogenic according to our data. Variant chr13-20223371-A-T is described in ClinVar as [Pathogenic]. Clinvar id is 5547.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr13-20223371-A-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GJB6NM_001110219.3 linkuse as main transcriptc.110T>A p.Val37Glu missense_variant 5/5 ENST00000647029.1 NP_001103689.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GJB6ENST00000647029.1 linkuse as main transcriptc.110T>A p.Val37Glu missense_variant 5/5 NM_001110219.3 ENSP00000493834 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251492
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461882
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Hidrotic ectodermal dysplasia syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMar 01, 2002- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.90
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.51
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.95
D;D;D;D;D;D;D;D;D;D;D;.;.;.;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
.;.;.;.;.;.;.;.;.;.;D;D;D;D;D
M_CAP
Pathogenic
0.77
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.1
M;M;M;M;M;M;M;M;M;M;M;.;.;.;.
MutationTaster
Benign
1.0
A;A;A;A
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-5.6
D;.;D;D;.;.;D;.;.;.;.;.;.;.;.
REVEL
Pathogenic
0.90
Sift
Uncertain
0.0010
D;.;D;D;.;.;D;.;.;.;.;.;.;.;.
Sift4G
Uncertain
0.0050
D;.;D;D;.;.;D;.;.;.;.;.;.;.;.
Polyphen
1.0
D;D;D;D;D;D;D;D;D;D;D;.;.;.;.
Vest4
0.90
MutPred
0.92
Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);
MVP
0.92
MPC
0.63
ClinPred
1.0
D
GERP RS
5.4
Varity_R
0.87
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: rs104894416; hg19: chr13-20797510; API