16-23209917-A-G

Position:

• chr16-23209917-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_001039.4(SCNN1G):​c.1176+69A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.801 in 1,108,250 control chromosomes in the GnomAD database, including 357,872 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.76 (44855 hom., cov: 32)
  • Exomes 𝑓: 0.81 (313017 hom.)
• Consequence: SCNN1G NM_001039.4 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.285

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]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP6: Variant 16-23209917-A-G is Benign according to our data. Variant chr16-23209917-A-G is described in ClinVar as [Benign]. Clinvar id is 1289716.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.857 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SCNN1G	NM_001039.4	c.1176+69A>G		intron_variant		ENST00000300061.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SCNN1G	ENST00000300061.3	c.1176+69A>G		intron_variant		1	NM_001039.4	P1
	ENST00000563471.1	n.101+3087T>C		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes AF: 0.763 AC: 116016 AN: 152032 Hom.: 44821 Cov.: 32

Gnomad AFR AF: 0.649

Gnomad AMI AF: 0.805

Gnomad AMR AF: 0.831

Gnomad ASJ AF: 0.864

Gnomad EAS AF: 0.878

Gnomad SAS AF: 0.845

Gnomad FIN AF: 0.767

Gnomad MID AF: 0.858

Gnomad NFE AF: 0.795

Gnomad OTH AF: 0.795

GnomAD4 exome AF: 0.808 AC: 772122 AN: 956098 Hom.: 313017 AF XY: 0.809 AC XY: 401068 AN XY: 495654

Gnomad4 AFR exome AF: 0.651

Gnomad4 AMR exome AF: 0.892

Gnomad4 ASJ exome AF: 0.851

Gnomad4 EAS exome AF: 0.892

Gnomad4 SAS exome AF: 0.847

Gnomad4 FIN exome AF: 0.756

Gnomad4 NFE exome AF: 0.801

Gnomad4 OTH exome AF: 0.801

GnomAD4 genome AF: 0.763 AC: 116104 AN: 152152 Hom.: 44855 Cov.: 32 AF XY: 0.763 AC XY: 56723 AN XY: 74388

Gnomad4 AFR AF: 0.649

Gnomad4 AMR AF: 0.831

Gnomad4 ASJ AF: 0.864

Gnomad4 EAS AF: 0.879

Gnomad4 SAS AF: 0.847

Gnomad4 FIN AF: 0.767

Gnomad4 NFE AF: 0.795

Gnomad4 OTH AF: 0.794

Alfa AF: 0.797 Hom.: 46901

Bravo AF: 0.767

Asia WGS AF: 0.777 AC: 2700 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Nov 12, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	13
DANN	Benign	0.72

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

Other links and lift over

dbSNP: rs4281710; hg19: chr16-23221238;