rs141106870
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_025137.4(SPG11):c.3095C>T(p.Pro1032Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000898 in 1,613,814 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SPG11 | NM_025137.4 | c.3095C>T | p.Pro1032Leu | missense_variant | Exon 17 of 40 | ENST00000261866.12 | NP_079413.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152140Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000358 AC: 9AN: 251322Hom.: 0 AF XY: 0.0000294 AC XY: 4AN XY: 135840
GnomAD4 exome AF: 0.0000971 AC: 142AN: 1461674Hom.: 0 Cov.: 30 AF XY: 0.0000908 AC XY: 66AN XY: 727144
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152140Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74310
ClinVar
Submissions by phenotype
Hereditary spastic paraplegia 11 Uncertain:3
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 1032 of the SPG11 protein (p.Pro1032Leu). This variant is present in population databases (rs141106870, 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: 466518). 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 disruptive. 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.P1032L variant (also known as c.3095C>T), located in coding exon 17 of the SPG11 gene, results from a C to T substitution at nucleotide position 3095. The proline at codon 1032 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. -
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