16-23189602-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001039.4(SCNN1G):​c.549C>T​(p.Gly183Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0668 in 1,613,944 control chromosomes in the GnomAD database, including 4,018 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.065 ( 384 hom., cov: 32)
Exomes 𝑓: 0.067 ( 3634 hom. )

Consequence

SCNN1G
NM_001039.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -3.04
Variant links:
Genes affected
SCNN1G (HGNC:10602): (sodium channel epithelial 1 subunit gamma) Nonvoltage-gated, amiloride-sensitive, sodium channels control fluid and electrolyte transport across epithelia in many organs. These channels are heteromeric complexes consisting of 3 subunits: alpha, beta, and gamma. This gene encodes the gamma subunit, and mutations in this gene have been associated with Liddle syndrome. [provided by RefSeq, Apr 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 16-23189602-C-T is Benign according to our data. Variant chr16-23189602-C-T is described in ClinVar as [Benign]. Clinvar id is 165174.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-23189602-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-3.04 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0722 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SCNN1GNM_001039.4 linkuse as main transcriptc.549C>T p.Gly183Gly synonymous_variant 3/13 ENST00000300061.3 NP_001030.2 P51170A5X2V1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SCNN1GENST00000300061.3 linkuse as main transcriptc.549C>T p.Gly183Gly synonymous_variant 3/131 NM_001039.4 ENSP00000300061.2 P51170

Frequencies

GnomAD3 genomes
AF:
0.0650
AC:
9882
AN:
152130
Hom.:
380
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0518
Gnomad AMI
AF:
0.0241
Gnomad AMR
AF:
0.0508
Gnomad ASJ
AF:
0.0510
Gnomad EAS
AF:
0.0185
Gnomad SAS
AF:
0.0385
Gnomad FIN
AF:
0.123
Gnomad MID
AF:
0.0475
Gnomad NFE
AF:
0.0739
Gnomad OTH
AF:
0.0616
GnomAD3 exomes
AF:
0.0612
AC:
15397
AN:
251492
Hom.:
609
AF XY:
0.0613
AC XY:
8337
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.0512
Gnomad AMR exome
AF:
0.0352
Gnomad ASJ exome
AF:
0.0638
Gnomad EAS exome
AF:
0.0175
Gnomad SAS exome
AF:
0.0331
Gnomad FIN exome
AF:
0.121
Gnomad NFE exome
AF:
0.0732
Gnomad OTH exome
AF:
0.0668
GnomAD4 exome
AF:
0.0670
AC:
97911
AN:
1461696
Hom.:
3634
Cov.:
34
AF XY:
0.0662
AC XY:
48146
AN XY:
727160
show subpopulations
Gnomad4 AFR exome
AF:
0.0503
Gnomad4 AMR exome
AF:
0.0366
Gnomad4 ASJ exome
AF:
0.0620
Gnomad4 EAS exome
AF:
0.0151
Gnomad4 SAS exome
AF:
0.0340
Gnomad4 FIN exome
AF:
0.126
Gnomad4 NFE exome
AF:
0.0704
Gnomad4 OTH exome
AF:
0.0671
GnomAD4 genome
AF:
0.0651
AC:
9906
AN:
152248
Hom.:
384
Cov.:
32
AF XY:
0.0663
AC XY:
4938
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.0523
Gnomad4 AMR
AF:
0.0506
Gnomad4 ASJ
AF:
0.0510
Gnomad4 EAS
AF:
0.0188
Gnomad4 SAS
AF:
0.0381
Gnomad4 FIN
AF:
0.123
Gnomad4 NFE
AF:
0.0739
Gnomad4 OTH
AF:
0.0614
Alfa
AF:
0.0684
Hom.:
247
Bravo
AF:
0.0591
Asia WGS
AF:
0.0620
AC:
214
AN:
3478
EpiCase
AF:
0.0641
EpiControl
AF:
0.0715

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsDec 15, 2017- -
Benign, criteria provided, single submitterclinical testingGeneDxFeb 03, 2020- -
not specified Benign:2
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineFeb 21, 2013Gly183Gly in exon 3 of SCNN1G: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue and is not located wit hin the splice consensus sequence. It has been identified in 6.9% (596/8600) of European American chromosomes from a broad population by the NHLBI Exome Sequenc ing Project (http://evs.gs.washington.edu/EVS; dbSNP rs5737). -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Pseudohypoaldosteronism, type IB1, autosomal recessive Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Liddle syndrome 2 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.082
DANN
Benign
0.50

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: rs5737; hg19: chr16-23200923; COSMIC: COSV55602542; API