16-23371836-C-A

Variant names:

Variant summary

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

The NM_000336.3(SCNN1B):c.1105C>A(p.Pro369Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000279 in 1,614,224 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

SCNN1B
NM_000336.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:2

Conservation

PhyloP100: 3.95

Publications

7 publications found

Variant links:

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]

SCNN1B Gene-Disease associations (from GenCC):

Liddle syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
pseudohypoaldosteronism, type IB2, autosomal recessive
Inheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
bronchiectasis with or without elevated sweat chloride 1
Inheritance: AD, SD Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Ambry Genetics
pseudohypoaldosteronism, type IB1, autosomal recessive
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
Liddle syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

SCNN1B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCNN1B	NM_000336.3 link	c.1105C>A	p.Pro369Thr	missense_variant	Exon 7 of 13	ENST00000343070.7	NP_000327.2	P51168-1B2R812

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCNN1B	ENST00000343070.7 link	c.1105C>A	p.Pro369Thr	missense_variant	Exon 7 of 13	1	NM_000336.3	ENSP00000345751.2		P51168-1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152254

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000434

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000437

AC:

AN:

251494

AF XY:

0.0000368

show subpopulations

Gnomad AFR exome

AF:

0.000615

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000178

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727228

show subpopulations

African (AFR)

AF:

0.000568

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44724

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:

0.00000270

AC:

AN:

1111972

Other (OTH)

AF:

0.0000662

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000125

AC:

AN:

152372

Hom.:

Cov.:

AF XY:

0.000174

AC XY:

AN XY:

74508

show subpopulations

African (AFR)

AF:

0.000433

AC:

AN:

41598

American (AMR)

AF:

0.00

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68034

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.538

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:

0.0000198

Hom.:

Bravo

AF:

0.000140

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Bronchiectasis with or without elevated sweat chloride 1

Pathogenic:1

May 28, 2008

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Bronchiectasis with or without elevated sweat chloride 1;C5774255:Pseudohypoaldosteronism, type IB2, autosomal recessive;CN031472:Liddle syndrome 1

Uncertain:1

May 20, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1

May 08, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 8842). This missense change has been observed in individual(s) with bronchiectasis (PMID: 18507830). This variant is present in population databases (rs137852711, gnomAD 0.05%). This sequence change replaces proline, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 369 of the SCNN1B protein (p.Pro369Thr). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.23

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.56

D;.;.

Eigen

Benign

0.031

Eigen_PC

Benign

0.00033

FATHMM_MKL

Uncertain

0.76

LIST_S2

Uncertain

0.91

D;D;D

M_CAP

Benign

0.061

MetaRNN

Uncertain

0.51

D;D;D

MetaSVM

Uncertain

-0.24

MutationAssessor

Uncertain

2.8

M;.;.

PhyloP100

4.0

PrimateAI

Benign

0.40

PROVEAN

Pathogenic

-4.5

D;D;D

REVEL

Uncertain

0.32

Sift

Uncertain

0.014

D;D;D

Sift4G

Uncertain

0.014

D;D;D

Polyphen

0.72

P;.;.

Vest4

0.61

MVP

0.89

MPC

0.51

ClinPred

0.60

GERP RS

3.6

Varity_R

0.24

gMVP

0.59

Mutation Taster

=78/22

disease causing (ClinVar)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over