rs748925327
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_025137.4(SPG11):c.4216G>T(p.Ala1406Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000062 in 1,614,032 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
Publications
- hereditary spastic paraplegia 11Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Illumina, G2P
- amyotrophic lateral sclerosis type 5Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
- Charcot-Marie-Tooth disease axonal type 2XInheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
- juvenile amyotrophic lateral sclerosisInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SPG11 | NM_025137.4 | c.4216G>T | p.Ala1406Ser | missense_variant | Exon 25 of 40 | ENST00000261866.12 | NP_079413.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152144Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 251294 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461888Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5AN XY: 727246 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152144Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74328 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary spastic paraplegia 11 Uncertain:2
This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1406 of the SPG11 protein (p.Ala1406Ser). This variant is present in population databases (rs748925327, gnomAD 0.009%). 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: 578935). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt SPG11 protein function with a positive 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.A1406S variant (also known as c.4216G>T), located in coding exon 25 of the SPG11 gene, results from a G to T substitution at nucleotide position 4216. The alanine at codon 1406 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. 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. -
not provided Uncertain:1
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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