rs115012103

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000890.5(KCNJ5):​c.121C>T​(p.Arg41Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000691 in 1,614,206 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R41H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0029 ( 3 hom., cov: 33)
Exomes 𝑓: 0.00047 ( 1 hom. )

Consequence

KCNJ5
NM_000890.5 missense

Scores

2
6
10

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 5.85

Publications

5 publications found
Variant links:
Genes affected
KCNJ5 (HGNC:6266): (potassium inwardly rectifying channel subfamily J member 5) This gene encodes an integral membrane protein which belongs to one of seven subfamilies of inward-rectifier potassium channel proteins called potassium channel subfamily J. The encoded protein is a subunit of the potassium channel which is homotetrameric. It is controlled by G-proteins and has a greater tendency to allow potassium to flow into a cell rather than out of a cell. Naturally occurring mutations in this gene are associated with aldosterone-producing adenomas. [provided by RefSeq, Aug 2017]
KCNJ5 Gene-Disease associations (from GenCC):
  • familial hyperaldosteronism type III
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
  • Andersen-Tawil syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • long QT syndrome 13
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • long QT syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.011125803).
BP6
Variant 11-128911394-C-T is Benign according to our data. Variant chr11-128911394-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 188315.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00286 (435/152336) while in subpopulation AFR AF = 0.00957 (398/41574). AF 95% confidence interval is 0.0088. There are 3 homozygotes in GnomAd4. There are 213 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 435 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KCNJ5NM_000890.5 linkc.121C>T p.Arg41Cys missense_variant Exon 2 of 3 ENST00000529694.6 NP_000881.3 P48544A0A5J6E2W8
KCNJ5NM_001354169.2 linkc.121C>T p.Arg41Cys missense_variant Exon 3 of 4 NP_001341098.1
KCNJ5XM_011542810.4 linkc.121C>T p.Arg41Cys missense_variant Exon 2 of 3 XP_011541112.1 P48544A0A5J6E2W8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KCNJ5ENST00000529694.6 linkc.121C>T p.Arg41Cys missense_variant Exon 2 of 3 1 NM_000890.5 ENSP00000433295.1 P48544
KCNJ5ENST00000338350.4 linkc.121C>T p.Arg41Cys missense_variant Exon 3 of 4 1 ENSP00000339960.4 P48544
KCNJ5ENST00000533599.1 linkc.121C>T p.Arg41Cys missense_variant Exon 1 of 2 1 ENSP00000434266.1 P48544

Frequencies

GnomAD3 genomes
AF:
0.00285
AC:
434
AN:
152218
Hom.:
3
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00958
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00287
GnomAD2 exomes
AF:
0.00112
AC:
281
AN:
251458
AF XY:
0.000964
show subpopulations
Gnomad AFR exome
AF:
0.0116
Gnomad AMR exome
AF:
0.000607
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000465
AC:
680
AN:
1461870
Hom.:
1
Cov.:
30
AF XY:
0.000485
AC XY:
353
AN XY:
727238
show subpopulations
African (AFR)
AF:
0.0114
AC:
380
AN:
33480
American (AMR)
AF:
0.000626
AC:
28
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00218
AC:
188
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00104
AC:
6
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000198
AC:
22
AN:
1112012
Other (OTH)
AF:
0.000927
AC:
56
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
48
96
145
193
241
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.00286
AC:
435
AN:
152336
Hom.:
3
Cov.:
33
AF XY:
0.00286
AC XY:
213
AN XY:
74490
show subpopulations
African (AFR)
AF:
0.00957
AC:
398
AN:
41574
American (AMR)
AF:
0.00124
AC:
19
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00166
AC:
8
AN:
4826
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68030
Other (OTH)
AF:
0.00284
AC:
6
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
21
42
64
85
106
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00100
Hom.:
4
Bravo
AF:
0.00347
ESP6500AA
AF:
0.0114
AC:
50
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.00150
AC:
182
Asia WGS
AF:
0.00260
AC:
9
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:2
Nov 04, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

May 15, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Primary dilated cardiomyopathy;C0023976:Long QT syndrome Benign:1
May 15, 2018
Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Familial hyperaldosteronism type III Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This 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. -

Congenital long QT syndrome Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Long QT syndrome Benign:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Benign:1
Jun 26, 2015
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.38
T;T;T
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
.;.;D
MetaRNN
Benign
0.011
T;T;T
MetaSVM
Uncertain
0.051
D
MutationAssessor
Benign
0.62
N;N;N
PhyloP100
5.8
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.4
N;N;N
REVEL
Uncertain
0.45
Sift
Uncertain
0.024
D;D;D
Sift4G
Benign
0.083
T;T;T
Polyphen
1.0
D;D;D
Vest4
0.66
MVP
0.91
MPC
1.1
ClinPred
0.034
T
GERP RS
5.8
PromoterAI
0.028
Neutral
Varity_R
0.11
gMVP
0.64
Mutation Taster
=65/35
polymorphism

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

Other links and lift over

dbSNP: rs115012103; hg19: chr11-128781289; COSMIC: COSV57963902; API