chr1-147758986-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP3_ModeratePP5

The NM_181703.4(GJA5):​c.253G>A​(p.Val85Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. V85V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Consequence

GJA5
NM_181703.4 missense

Scores

9
6
4

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.90
Variant links:
Genes affected
GJA5 (HGNC:4279): (gap junction protein alpha 5) This gene is a member of the connexin gene family. The encoded protein is a component of gap junctions, which are composed of arrays of intercellular channels that provide a route for the diffusion of low molecular weight materials from cell to cell. Mutations in this gene may be associated with atrial fibrillation. Alternatively spliced transcript variants encoding the same isoform have been described. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a transmembrane_region Helical (size 20) in uniprot entity CXA5_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_181703.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.917
PP5
Variant 1-147758986-C-T is Pathogenic according to our data. Variant chr1-147758986-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 29664.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr1-147758986-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GJA5NM_181703.4 linkuse as main transcriptc.253G>A p.Val85Ile missense_variant 2/2 ENST00000579774.3
LOC102723321XR_922079.4 linkuse as main transcriptn.82-18575C>T intron_variant, non_coding_transcript_variant
GJA5NM_005266.7 linkuse as main transcriptc.253G>A p.Val85Ile missense_variant 2/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GJA5ENST00000579774.3 linkuse as main transcriptc.253G>A p.Val85Ile missense_variant 2/21 NM_181703.4 P1
GJA5ENST00000621517.1 linkuse as main transcriptc.253G>A p.Val85Ile missense_variant 2/22 P1
GJA5ENST00000430508.1 linkuse as main transcriptc.253G>A p.Val85Ile missense_variant 2/22

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
33
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Atrial fibrillation, familial, 11 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 01, 2010- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.48
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.68
D;D;T
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
.;D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Pathogenic
0.92
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.2
M;M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-1.0
.;.;N
REVEL
Pathogenic
0.88
Sift
Benign
0.11
.;.;T
Sift4G
Pathogenic
0.0
D;D;.
Polyphen
1.0
D;D;.
Vest4
0.86
MutPred
0.84
Gain of catalytic residue at L90 (P = 0.0176);Gain of catalytic residue at L90 (P = 0.0176);Gain of catalytic residue at L90 (P = 0.0176);
MVP
0.99
ClinPred
0.96
D
GERP RS
5.8
Varity_R
0.47
gMVP
0.91

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: rs387906613; hg19: chr1-147231094; COSMIC: COSV99605540; COSMIC: COSV99605540; API