Genetic Variant GJA4:p.Ile208Thr (chr1-34794836-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_002060.3(GJA4):c.623T>C(p.Ile208Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000615 in 1,613,948 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00065 ( 0 hom. )

Consequence

GJA4
NM_002060.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02

Publications

2 publications found

Variant links:

Genes affected

GJA4 (HGNC:4278): (gap junction protein alpha 4) This gene encodes 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 have been associated with atherosclerosis and a higher risk of myocardial infarction. [provided by RefSeq, Jul 2008]

GJA4 links:

SMIM12 (HGNC:25154): (small integral membrane protein 12) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

SMIM12 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.893

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002060.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GJA4	NM_002060.3	MANE Select	c.623T>C	p.Ile208Thr	missense	Exon 2 of 2	NP_002051.2	P35212

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
GJA4	ENST00000342280.5	TSL:1 MANE Select	c.623T>C	p.Ile208Thr	missense	Exon 2 of 2	ENSP00000343676.4	P35212
SMIM12	ENST00000426886.1	TSL:1	n.207+60935A>G		intron	N/A	ENSP00000429902.1	E5RH51
GJA4	ENST00000868038.1		c.623T>C	p.Ile208Thr	missense	Exon 2 of 2	ENSP00000538097.1

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.000529

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000262

AC:

AN:

251476

AF XY:

0.000309

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000563

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000650

AC:

950

AN:

1461856

Hom.:

Cov.:

AF XY:

0.000645

AC XY:

469

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000823

AC:

915

AN:

1111976

Other (OTH)

AF:

0.000497

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

111

167

222

278

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

114

152

190

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000276

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74282

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41416

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000529

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000533

Hom.:

Bravo

AF:

0.000332

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000189

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.000474

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Pathogenic

0.59

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.91

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.87

M_CAP

Pathogenic

0.38

MetaRNN

Pathogenic

0.89

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

3.7

PhyloP100

8.0

PrimateAI

Uncertain

0.78

PROVEAN

Pathogenic

-4.4

REVEL

Pathogenic

0.93

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

0.65

Vest4

0.96

MVP

1.0

MPC

1.4

ClinPred

0.97

GERP RS

5.7

Varity_R

0.87

gMVP

0.86

Mutation Taster

=31/69

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over