rs782592443

Variant names:

• chr1-147758266-T-C
• rs782592443
• NM_181703.4:c.973A>G

Your query was ambiguous. Multiple possible variants found:

• chr1-147758266-T-C
• chr1-147758266-T-G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_181703.4(GJA5):​c.973A>G​(p.Asn325Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N325H) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: GJA5 NM_181703.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.47
• Publications: 2 publications found

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]

GJA5 Gene-Disease associations (from GenCC):

• atrial fibrillation, familial, 11

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• familial atrial fibrillation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• heart conduction disease

  Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp

ENSG00000274415 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 4 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Trascript score misZ: 1.5546 (below the threshold of 3.09). GenCC associations: The gene is linked to atrial fibrillation, familial, 11, heart conduction disease, familial atrial fibrillation.
• BP4: Computational evidence support a benign effect (MetaRNN=0.101273715).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GJA5	NM_181703.4	c.973A>G	p.Asn325Asp	missense_variant	Exon 2 of 2	ENST00000579774.3	NP_859054.1
GJA5	NM_005266.7	c.973A>G	p.Asn325Asp	missense_variant	Exon 2 of 2		NP_005257.2
LOC102723321	XR_922079.4	n.82-19295T>C		intron_variant	Intron 1 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GJA5	ENST00000579774.3	c.973A>G	p.Asn325Asp	missense_variant	Exon 2 of 2	1	NM_181703.4	ENSP00000463851.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251436 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.0000992

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.069
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	15
DANN	Benign	0.95
DEOGEN2	Benign	0.21	T;T
Eigen	Benign	-0.61
Eigen_PC	Benign	-0.55
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Benign	0.51	.;T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.10	T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.3	L;L
PhyloP100		2.5
PrimateAI	Benign	0.33	T
Sift4G	Benign	0.73	T;T
Polyphen		0.0030	B;B
Vest4		0.076
MutPred		0.18		Gain of phosphorylation at S328 (P = 0.1087);Gain of phosphorylation at S328 (P = 0.1087);
MVP		0.83
ClinPred		0.075	T
GERP RS		0.24
Varity_R		0.081
gMVP		0.25
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs782592443; hg19: chr1-147230374;