rs375854186
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Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2
The NM_012281.3(KCND2):c.801G>A(p.Val267=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,613,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).
Frequency
Genomes: 𝑓 0.00017 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000036 ( 0 hom. )
Consequence
KCND2
NM_012281.3 synonymous
NM_012281.3 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 3.35
Genes affected
KCND2 (HGNC:6238): (potassium voltage-gated channel subfamily D member 2) Voltage-gated potassium (Kv) 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, shal-related subfamily, members of which form voltage-activated A-type potassium ion channels and are prominent in the repolarization phase of the action potential. This member mediates a rapidly inactivating, A-type outward potassium current which is not under the control of the N terminus as it is in Shaker channels. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -11 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
?
Variant 7-120275433-G-A is Benign according to our data. Variant chr7-120275433-G-A is described in ClinVar as [Benign]. Clinvar id is 460206.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
?
Synonymous conserved (PhyloP=3.35 with no splicing effect.
BS2
?
High AC in GnomAd4 at 26 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KCND2 | NM_012281.3 | c.801G>A | p.Val267= | synonymous_variant | 1/6 | ENST00000331113.9 | |
KCND2 | XM_047420346.1 | c.801G>A | p.Val267= | synonymous_variant | 2/7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCND2 | ENST00000331113.9 | c.801G>A | p.Val267= | synonymous_variant | 1/6 | 1 | NM_012281.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.000171 AC: 26AN: 151778Hom.: 0 Cov.: 31
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GnomAD3 exomes AF: 0.0000795 AC: 20AN: 251454Hom.: 0 AF XY: 0.0000662 AC XY: 9AN XY: 135912
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GnomAD4 exome AF: 0.0000363 AC: 53AN: 1461890Hom.: 0 Cov.: 32 AF XY: 0.0000426 AC XY: 31AN XY: 727244
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GnomAD4 genome ? AF: 0.000171 AC: 26AN: 151896Hom.: 0 Cov.: 31 AF XY: 0.000189 AC XY: 14AN XY: 74216
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ClinVar
Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Early myoclonic encephalopathy Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 08, 2024 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at