chr5-114361993-C-T
Position:
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_001372233.1(KCNN2):c.52C>T(p.Pro18Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 6/8 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Consequence
KCNN2
NM_001372233.1 missense
NM_001372233.1 missense
Scores
1
5
Clinical Significance
Conservation
PhyloP100: 2.80
Genes affected
KCNN2 (HGNC:6291): (potassium calcium-activated channel subfamily N member 2) Action potentials in vertebrate neurons are followed by an afterhyperpolarization (AHP) that may persist for several seconds and may have profound consequences for the firing pattern of the neuron. Each component of the AHP is kinetically distinct and is mediated by different calcium-activated potassium channels. The protein encoded by this gene is activated before membrane hyperpolarization and is thought to regulate neuronal excitability by contributing to the slow component of synaptic AHP. This gene is a member of the KCNN family of potassium channel genes. The encoded protein is an integral membrane protein that forms a voltage-independent calcium-activated channel with three other calmodulin-binding subunits. Alternate splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]
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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;
BP4
Computational evidence support a benign effect (MetaRNN=0.31305492).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KCNN2 | NM_001372233.1 | c.52C>T | p.Pro18Ser | missense_variant | 6/13 | ||
KCNN2 | XM_011543389.2 | c.52C>T | p.Pro18Ser | missense_variant | 5/12 | ||
KCNN2 | XM_047417166.1 | c.22C>T | p.Pro8Ser | missense_variant | 5/12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCNN2 | ENST00000512097.10 | c.52C>T | p.Pro18Ser | missense_variant | 6/13 | 5 | A2 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
GnomAD4 exome Cov.: 0
GnomAD4 exome
Cov.:
0
GnomAD4 genome Cov.: 33
GnomAD4 genome
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Feb 01, 2024 | KCNN2: PM2 - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
FATHMM_MKL
Benign
D
LIST_S2
Benign
T
MetaRNN
Benign
T
MutationTaster
Benign
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
Publications
No publications associated with this variant yet.