rs375848765

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PP3_StrongPP5

The NM_000525.4(KCNJ11):​c.160C>T​(p.Arg54Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000497 in 1,610,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/20 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R54H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

KCNJ11
NM_000525.4 missense

Scores

15
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:3

Conservation

PhyloP100: 6.89

Publications

7 publications found
Variant links:
Genes affected
KCNJ11 (HGNC:6257): (potassium inwardly rectifying channel subfamily J member 11) Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, is controlled by G-proteins and is found associated with the sulfonylurea receptor SUR. Mutations in this gene are a cause of familial persistent hyperinsulinemic hypoglycemia of infancy (PHHI), an autosomal recessive disorder characterized by unregulated insulin secretion. Defects in this gene may also contribute to autosomal dominant non-insulin-dependent diabetes mellitus type II (NIDDM), transient neonatal diabetes mellitus type 3 (TNDM3), and permanent neonatal diabetes mellitus (PNDM). Multiple alternatively spliced transcript variants that encode different protein isoforms have been described for this gene. [provided by RefSeq, Oct 2009]
KCNJ11 Gene-Disease associations (from GenCC):
  • diabetes mellitus, transient neonatal, 3
    Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • monogenic diabetes
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • hyperinsulinemic hypoglycemia, familial, 2
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, Genomics England PanelApp
  • diabetes mellitus, noninsulin-dependent
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • diabetes mellitus, permanent neonatal 2
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • maturity-onset diabetes of the young type 13
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • autosomal dominant hyperinsulinism due to Kir6.2 deficiency
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • DEND syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • intermediate DEND syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • maturity-onset diabetes of the young
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • permanent neonatal diabetes mellitus
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • transient neonatal diabetes mellitus
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive hyperinsulinism due to Kir6.2 deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • diazoxide-resistant focal hyperinsulinism due to Kir6.2 deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM1
In a hotspot region, there are 12 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 3 benign, 5 uncertain in NM_000525.4
PP3
MetaRNN computational evidence supports a deleterious effect, 0.962
PP5
Variant 11-17387932-G-A is Pathogenic according to our data. Variant chr11-17387932-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 447634.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000525.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCNJ11
NM_000525.4
MANE Select
c.160C>Tp.Arg54Cys
missense
Exon 1 of 1NP_000516.3
KCNJ11
NM_001166290.2
c.-16-86C>T
intron
N/ANP_001159762.1A0A804HHV7
KCNJ11
NM_001377296.1
c.-17+86C>T
intron
N/ANP_001364225.1A0A804HHV7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KCNJ11
ENST00000339994.5
TSL:6 MANE Select
c.160C>Tp.Arg54Cys
missense
Exon 1 of 1ENSP00000345708.4Q14654-1
KCNJ11
ENST00000528731.1
TSL:1
c.-16-86C>T
intron
N/AENSP00000434755.1Q14654-2
KCNJ11
ENST00000528992.2
TSL:4
c.-69C>T
5_prime_UTR_premature_start_codon_gain
Exon 2 of 2ENSP00000436479.2H0YES9

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251196
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1458408
Hom.:
0
Cov.:
63
AF XY:
0.00000138
AC XY:
1
AN XY:
724676
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33408
American (AMR)
AF:
0.00
AC:
0
AN:
44664
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26102
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39566
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86216
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53364
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00000541
AC:
6
AN:
1109114
Other (OTH)
AF:
0.00
AC:
0
AN:
60214
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
1
-
not provided (2)
-
1
-
Maturity-onset diabetes of the young (1)
-
1
-
not specified (1)
1
-
-
Type 2 diabetes mellitus (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.71
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.57
CADD
Pathogenic
33
DANN
Pathogenic
1.0
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Pathogenic
0.72
D
MetaRNN
Pathogenic
0.96
D
MetaSVM
Pathogenic
1.1
D
PhyloP100
6.9
PrimateAI
Pathogenic
0.92
D
PROVEAN
Pathogenic
-6.7
D
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Vest4
0.90
MVP
0.97
MPC
1.9
ClinPred
1.0
D
GERP RS
4.6
gMVP
0.91
Mutation Taster
=4/96
disease causing (ClinVar)

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: rs375848765; hg19: chr11-17409479; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.