Variant chr7-99929187-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_181538.3(GJC3):c.434T>C(p.Leu145Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,698 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

GJC3
NM_181538.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.03

Variant links:

Genes affected

GJC3 (HGNC:17495): (gap junction protein gamma 3) This gene encodes a gap junction protein. The encoded protein, also known as a connexin, plays a role in formation of gap junctions, which provide direct connections between neighboring cells. Mutations in this gene have been reported to be associated with nonsyndromic hearing loss.[provided by RefSeq, Feb 2010]

GJC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GJC3	NM_181538.3 linkuse as main transcript	c.434T>C	p.Leu145Pro	missense_variant	1/2	ENST00000312891.3	NP_853516.1	Q8NFK1
GJC3	XM_047420329.1 linkuse as main transcript	c.240+194T>C		intron_variant			XP_047276285.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GJC3	ENST00000312891.3 linkuse as main transcript	c.434T>C	p.Leu145Pro	missense_variant	1/2	1	NM_181538.3	ENSP00000325775.2		Q8NFK1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251100

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135734

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000174

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:

0.00000479

AC:

AN:

1461698

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727138

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

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.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2024

The c.434T>C (p.L145P) alteration is located in exon 1 (coding exon 1) of the GJC3 gene. This alteration results from a T to C substitution at nucleotide position 434, causing the leucine (L) at amino acid position 145 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.54

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Pathogenic

0.18

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.80

Eigen

Benign

-0.068

Eigen_PC

Benign

-0.088

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.70

M_CAP

Uncertain

0.096

MetaRNN

Uncertain

0.71

MetaSVM

Uncertain

0.26

MutationAssessor

Benign

2.0

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.61

Sift

Benign

0.053

Sift4G

Uncertain

0.058

Polyphen

0.98

Vest4

0.57

MutPred

0.62

Loss of stability (P = 0.0239);

MVP

0.81

MPC

1.1

ClinPred

0.45

GERP RS

3.6

Varity_R

0.76

gMVP

0.85

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over