rs139073333

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000890.5(KCNJ5):​c.122G>A​(p.Arg41His) variant causes a missense change. The variant allele was found at a frequency of 0.0000613 in 1,614,180 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict 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. R41C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

KCNJ5
NM_000890.5 missense

Scores

3
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 6.34
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.042514235).
BP6
Variant 11-128911395-G-A is Benign according to our data. Variant chr11-128911395-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 457005.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-128911395-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000236 (36/152318) while in subpopulation AFR AF= 0.00077 (32/41566). AF 95% confidence interval is 0.00056. There are 0 homozygotes in gnomad4. There are 20 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 36 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KCNJ5NM_000890.5 linkc.122G>A p.Arg41His missense_variant Exon 2 of 3 ENST00000529694.6 NP_000881.3 P48544A0A5J6E2W8
KCNJ5NM_001354169.2 linkc.122G>A p.Arg41His missense_variant Exon 3 of 4 NP_001341098.1
KCNJ5XM_011542810.4 linkc.122G>A p.Arg41His 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.122G>A p.Arg41His missense_variant Exon 2 of 3 1 NM_000890.5 ENSP00000433295.1 P48544
KCNJ5ENST00000338350.4 linkc.122G>A p.Arg41His missense_variant Exon 3 of 4 1 ENSP00000339960.4 P48544
KCNJ5ENST00000533599.1 linkc.122G>A p.Arg41His missense_variant Exon 1 of 2 1 ENSP00000434266.1 P48544

Frequencies

GnomAD3 genomes
AF:
0.000237
AC:
36
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000772
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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
GnomAD3 exomes
AF:
0.0000676
AC:
17
AN:
251460
Hom.:
0
AF XY:
0.0000736
AC XY:
10
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00105
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000431
AC:
63
AN:
1461862
Hom.:
0
Cov.:
30
AF XY:
0.0000481
AC XY:
35
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.00131
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.000236
AC:
36
AN:
152318
Hom.:
0
Cov.:
33
AF XY:
0.000269
AC XY:
20
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.000770
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000390
Hom.:
0
Bravo
AF:
0.000230
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000576
AC:
7
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Feb 11, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: KCNJ5 c.122G>A (p.Arg41His) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 6.8e-05 in 251460 control chromosomes. The observed variant frequency is approximately 68 fold of the estimated maximal expected allele frequency for a pathogenic variant in KCNJ5 causing Familial hyperaldosteronism type III phenotype (1e-06). To our knowledge, no occurrence of c.122G>A in individuals affected with Familial hyperaldosteronism type III and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 457005). Based on the evidence outlined above, the variant was classified as likely benign. -

not provided Benign:1
Jun 02, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Long QT syndrome Benign:1
Jan 07, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1
Oct 13, 2023
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
0.080
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T;T;T
Eigen
Benign
-0.033
Eigen_PC
Benign
0.22
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.89
.;.;D
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.043
T;T;T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
0.53
N;N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.81
N;N;N
REVEL
Benign
0.24
Sift
Benign
0.16
T;T;T
Sift4G
Benign
0.31
T;T;T
Polyphen
0.0050
B;B;B
Vest4
0.083
MVP
0.87
MPC
0.51
ClinPred
0.10
T
GERP RS
5.8
Varity_R
0.077
gMVP
0.44

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs139073333; hg19: chr11-128781290; COSMIC: COSV57963616; API