rs144022753
Variant names:
Your query was ambiguous. Multiple possible variants found:
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate
The NM_000891.3(KCNJ2):c.1199C>G(p.Thr400Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: not found (cov: 32)
Consequence
KCNJ2
NM_000891.3 missense
NM_000891.3 missense
Scores
1
5
13
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: 4.95
Genes affected
KCNJ2 (HGNC:6263): (potassium inwardly rectifying channel subfamily J member 2) 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, probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. Mutations in this gene have been associated with Andersen syndrome, which is characterized by periodic paralysis, cardiac arrhythmias, and dysmorphic features. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the KCNJ2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 51 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 2.7459 (below the threshold of 3.09). Trascript score misZ: 3.9347 (above the threshold of 3.09). GenCC associations: The gene is linked to long QT syndrome, short QT syndrome, Andersen-Tawil syndrome, familial atrial fibrillation, short QT syndrome type 3, catecholaminergic polymorphic ventricular tachycardia.
BP4
Computational evidence support a benign effect (MetaRNN=0.12174538).
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes
GnomAD3 genomes
Cov.:
32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251044Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135714
GnomAD3 exomes
AF:
AC:
1
AN:
251044
Hom.:
AF XY:
AC XY:
1
AN XY:
135714
Gnomad AFR exome
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Gnomad AMR exome
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Gnomad ASJ exome
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Gnomad EAS exome
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Gnomad SAS exome
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Gnomad FIN exome
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Gnomad OTH exome
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GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
GnomAD4 genome
Cov.:
32
ExAC
AF:
AC:
1
ClinVar
Not reported inComputational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Uncertain
CADD
Benign
DANN
Benign
DEOGEN2
Benign
T;T
Eigen
Benign
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
.;D
M_CAP
Benign
D
MetaRNN
Benign
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
N;N
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Uncertain
Sift
Benign
T;T
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MutPred
Loss of glycosylation at T400 (P = 0.0053);Loss of glycosylation at T400 (P = 0.0053);
MVP
MPC
1.0
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at