5-114362558-G-GGCAGCAGTACGC
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM4BS2
The NM_021614.4(KCNN2):c.428_439dupACGCGCAGCAGT(p.Tyr143_Gln146dup) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000117 in 613,214 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Consequence
NM_021614.4 disruptive_inframe_insertion
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
KCNN2 | ENST00000673685.1 | c.428_439dupACGCGCAGCAGT | p.Tyr143_Gln146dup | disruptive_inframe_insertion | Exon 1 of 8 | NM_021614.4 | ENSP00000501239.1 | |||
KCNN2 | ENST00000512097.10 | c.626_637dupACGCGCAGCAGT | p.Tyr209_Gln212dup | disruptive_inframe_insertion | Exon 6 of 13 | 5 | ENSP00000427120.4 |
Frequencies
GnomAD3 genomes AF: 0.000191 AC: 29AN: 152162Hom.: 0 Cov.: 33
GnomAD4 exome AF: 0.0000933 AC: 43AN: 460938Hom.: 0 Cov.: 6 AF XY: 0.0000876 AC XY: 21AN XY: 239774
GnomAD4 genome AF: 0.000190 AC: 29AN: 152276Hom.: 0 Cov.: 33 AF XY: 0.000188 AC XY: 14AN XY: 74448
ClinVar
Submissions by phenotype
Dystonia 34, myoclonic Uncertain:1
The c.428_439dup variant is not present in publicly available population databases like 1000 Genomes, ExAC, EVS, gnomAD, Indian Exome Database or our in-house exome database. This variant has neither been published in literature nor reported to clinical databases like in ClinVar, Human Gene Mutation Database (HGMD) or OMIM, in any affected individuals. In-silico pathogenicity prediction programs like MutationTaster2, CADD etc predicted this variant to be likely deleterious. This variant is located in a non-repetitive region of the gene that may alter the protein length by in-frame duplication of 4 amino acids. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at