rs72654338

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong

The NM_000336.3(SCNN1B):​c.880G>A​(p.Gly294Ser) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000733 in 1,609,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000075 ( 0 hom. )

Consequence

SCNN1B
NM_000336.3 missense, splice_region

Scores

11
7
1
Splicing: ADA: 1.000
2

Clinical Significance

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

Conservation

PhyloP100: 7.30

Publications

9 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCNN1BNM_000336.3 linkc.880G>A p.Gly294Ser missense_variant, splice_region_variant Exon 5 of 13 ENST00000343070.7 NP_000327.2 P51168-1B2R812

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCNN1BENST00000343070.7 linkc.880G>A p.Gly294Ser missense_variant, splice_region_variant Exon 5 of 13 1 NM_000336.3 ENSP00000345751.2 P51168-1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152206
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000660
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000716
AC:
18
AN:
251490
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.000231
Gnomad NFE exome
AF:
0.0000967
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000748
AC:
109
AN:
1457510
Hom.:
0
Cov.:
30
AF XY:
0.0000551
AC XY:
40
AN XY:
725524
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33336
American (AMR)
AF:
0.0000224
AC:
1
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26110
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86172
European-Finnish (FIN)
AF:
0.000374
AC:
20
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000767
AC:
85
AN:
1108088
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60224
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000591
AC:
9
AN:
152206
Hom.:
0
Cov.:
34
AF XY:
0.0000404
AC XY:
3
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000192
AC:
1
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.000660
AC:
7
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000421
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Aug 13, 2015
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 03, 2023
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PP3, PS3_moderate, PS4_moderate -

Bronchiectasis with or without elevated sweat chloride 1 Pathogenic:1
Nov 15, 2005
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.77
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.32
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.69
D;.;.;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.93
D;D;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.92
D;D;D;D
MetaSVM
Uncertain
0.44
D
MutationAssessor
Pathogenic
3.7
H;.;.;.
PhyloP100
7.3
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-5.5
D;D;D;D
REVEL
Pathogenic
0.79
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.94
MVP
0.95
MPC
0.63
ClinPred
0.97
D
GERP RS
5.4
Varity_R
0.91
gMVP
0.90
Mutation Taster
=9/91
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.99
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs72654338; hg19: chr16-23379280; API