1-110593922-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2
The ENST00000369770.7(KCNA2):c.1042G>A(p.Ala348Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000143 in 1,397,512 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
KCNA2
ENST00000369770.7 missense
ENST00000369770.7 missense
Scores
1
9
4
Clinical Significance
Conservation
PhyloP100: 5.10
Genes affected
KCNA2 (HGNC:6220): (potassium voltage-gated channel subfamily A member 2) Potassium channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member contains six membrane-spanning domains with a shaker-type repeat in the fourth segment. It belongs to the delayed rectifier class, members of which allow nerve cells to efficiently repolarize following an action potential. The coding region of this gene is intronless, and the gene is clustered with genes KCNA3 and KCNA10 on chromosome 1. [provided by RefSeq, Jul 2008]
Genome browser will be placed here
ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, KCNA2
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KCNA2 | NM_004974.4 | c.*9361G>A | 3_prime_UTR_variant | 3/3 | ENST00000316361.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCNA2 | ENST00000316361.10 | c.*9361G>A | 3_prime_UTR_variant | 3/3 | 2 | NM_004974.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 30
GnomAD3 genomes
?
Cov.:
30
GnomAD4 exome AF: 0.00000143 AC: 2AN: 1397512Hom.: 0 Cov.: 30 AF XY: 0.00000145 AC XY: 1AN XY: 689288
GnomAD4 exome
AF:
AC:
2
AN:
1397512
Hom.:
Cov.:
30
AF XY:
AC XY:
1
AN XY:
689288
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome ? Cov.: 30
GnomAD4 genome
?
Cov.:
30
Asia WGS
AF:
AC:
2
AN:
3478
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Developmental and epileptic encephalopathy, 32 Uncertain:1
Uncertain significance, criteria provided, single submitter | research | UNC Molecular Genetics Laboratory, University of North Carolina at Chapel Hill | Jun 29, 2021 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
Cadd
Benign
Dann
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Uncertain
D
MetaRNN
Uncertain
T
MetaSVM
Uncertain
T
MutationTaster
Benign
N
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Pathogenic
D
Vest4
MutPred
Gain of sheet (P = 0.0266);
MVP
ClinPred
D
GERP RS
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