rs775877332
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_025137.4(SPG11):c.4972C>T(p.His1658Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,613,838 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_025137.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SPG11 | NM_025137.4 | c.4972C>T | p.His1658Tyr | missense_variant | Exon 29 of 40 | ENST00000261866.12 | NP_079413.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152032Hom.: 0 Cov.: 31
GnomAD3 exomes AF: 0.0000398 AC: 10AN: 251386Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135856
GnomAD4 exome AF: 0.0000424 AC: 62AN: 1461806Hom.: 0 Cov.: 35 AF XY: 0.0000509 AC XY: 37AN XY: 727202
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152032Hom.: 0 Cov.: 31 AF XY: 0.0000269 AC XY: 2AN XY: 74244
ClinVar
Submissions by phenotype
not provided Uncertain:3
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Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Hereditary spastic paraplegia 11 Uncertain:2
This sequence change replaces histidine, which is basic and polar, with tyrosine, which is neutral and polar, at codon 1658 of the SPG11 protein (p.His1658Tyr). This variant is present in population databases (rs775877332, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with SPG11-related conditions. ClinVar contains an entry for this variant (Variation ID: 466535). 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) performed at Invitae indicates that this missense variant is not expected to disrupt SPG11 protein function with a negative predictive value of 80%. 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. -
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Inborn genetic diseases Uncertain:1
The p.H1658Y variant (also known as c.4972C>T), located in coding exon 29 of the SPG11 gene, results from a C to T substitution at nucleotide position 4972. The histidine at codon 1658 is replaced by tyrosine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Amyotrophic lateral sclerosis type 5 Uncertain:1
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Charcot-Marie-Tooth disease axonal type 2X Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at