16-23302174-G-A

Position:

• chr16-23302174-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The XM_017023525.2(SCNN1B):​c.49+18370G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0334 in 152,514 control chromosomes in the GnomAD database, including 268 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.033 (268 hom., cov: 31)
  • Exomes 𝑓: 0.0026 (0 hom.)
• Consequence: SCNN1B XM_017023525.2 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.328

Genes affected

SCNN1B (HGNC:10600): (sodium channel epithelial 1 subunit beta) 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 beta subunit, and mutations in this gene have been associated with pseudohypoaldosteronism type 1 (PHA1), and Liddle syndrome. [provided by RefSeq, Apr 2009]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.75).
• BP6: Variant 16-23302174-G-A is Benign according to our data. Variant chr16-23302174-G-A is described in ClinVar as [Benign]. Clinvar id is 1678733.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.114 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SCNN1B	XM_017023525.2	c.49+18370G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SCNN1B	ENST00000569789.1	n.178+18370G>A		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes AF: 0.0334 AC: 5080 AN: 152016 Hom.: 267 Cov.: 31

Gnomad AFR AF: 0.117

Gnomad AMI AF: 0.0186

Gnomad AMR AF: 0.0107

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.000622

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000441

Gnomad OTH AF: 0.0154

GnomAD4 exome AF: 0.00263 AC: 1 AN: 380 Hom.: 0 AF XY: 0.00360 AC XY: 1 AN XY: 278

Gnomad4 AFR exome AF: 0.167

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 AF: 0.0335 AC: 5091 AN: 152134 Hom.: 268 Cov.: 31 AF XY: 0.0320 AC XY: 2384 AN XY: 74386

Gnomad4 AFR AF: 0.117

Gnomad4 AMR AF: 0.0107

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000194

Gnomad4 SAS AF: 0.000622

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000427

Gnomad4 OTH AF: 0.0152

Alfa AF: 0.0232 Hom.: 18

Bravo AF: 0.0385

Asia WGS AF: 0.00751 AC: 26 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

Apr 22, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	8.8
DANN	Benign	0.97

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs72652275; hg19: chr16-23313495;