rs759944784
Variant summary
Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2
The NM_018100.4(EFHC1):c.1586C>A(p.Ala529Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,084 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. A529A) has been classified as Likely benign.
Frequency
Consequence
NM_018100.4 missense
Scores
Clinical Significance
Conservation
Publications
- juvenile myoclonic epilepsyInheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
- epilepsyInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -8 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| EFHC1 | NM_018100.4 | c.1586C>A | p.Ala529Glu | missense_variant | Exon 9 of 11 | ENST00000371068.11 | NP_060570.2 | |
| EFHC1 | NM_001172420.2 | c.1529C>A | p.Ala510Glu | missense_variant | Exon 10 of 12 | NP_001165891.1 | ||
| EFHC1 | NR_033327.2 | n.2912C>A | non_coding_transcript_exon_variant | Exon 8 of 10 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251368 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461872Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727240 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74366 show subpopulations
ClinVar
Submissions by phenotype
not specified Uncertain:1
The c.1586C>A (p.A529E) alteration is located in exon 9 (coding exon 9) of the EFHC1 gene. This alteration results from a C to A substitution at nucleotide position 1586, causing the alanine (A) at amino acid position 529 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Absence seizure;C1850778:Myoclonic epilepsy, juvenile, susceptibility to, 1 Uncertain:1
In summary, this variant is a novel missense change that is not predicted to affect protein function. There is no indication that it causes disease, but the available evidence is currently insufficient to prove that conclusively. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies. This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a EFHC1-related disease. This sequence change replaces alanine with glutamic acid at codon 529 of the EFHC1 protein (p.Ala529Glu). The alanine residue is moderately conserved and there is a moderate physicochemical difference between alanine and glutamic acid. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at