rs747488969
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_004168.4(SDHA):c.1298C>T(p.Pro433Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000868 in 1,613,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P433S) has been classified as Uncertain significance.
Frequency
Consequence
NM_004168.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SDHA | NM_004168.4 | c.1298C>T | p.Pro433Leu | missense_variant | 10/15 | ENST00000264932.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SDHA | ENST00000264932.11 | c.1298C>T | p.Pro433Leu | missense_variant | 10/15 | 1 | NM_004168.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000797 AC: 2AN: 251044Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135704
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461602Hom.: 0 Cov.: 31 AF XY: 0.0000110 AC XY: 8AN XY: 727120
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74364
ClinVar
Submissions by phenotype
Paragangliomas 5;C5700310:Mitochondrial complex II deficiency, nuclear type 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jan 18, 2024 | This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 433 of the SDHA protein (p.Pro433Leu). This variant is present in population databases (rs747488969, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with SDHA-related conditions. ClinVar contains an entry for this variant (Variation ID: 539650). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SDHA protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Aug 01, 2023 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 21, 2023 | The p.P433L variant (also known as c.1298C>T), located in coding exon 10 of the SDHA gene, results from a C to T substitution at nucleotide position 1298. The proline at codon 433 is replaced by leucine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at