rs769129678
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_025137.4(SPG11):c.2903G>C(p.Gly968Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000558 in 1,613,944 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. G968E) has been classified 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.2903G>C | p.Gly968Ala | missense_variant | Exon 16 of 40 | ENST00000261866.12 | NP_079413.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| SPG11 | ENST00000261866.12 | c.2903G>C | p.Gly968Ala | missense_variant | Exon 16 of 40 | 1 | NM_025137.4 | ENSP00000261866.7 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152144Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 251286 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.0000581 AC: 85AN: 1461800Hom.: 0 Cov.: 31 AF XY: 0.0000564 AC XY: 41AN XY: 727208 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152144Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74328 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Inborn genetic diseases Uncertain:1
The c.2903G>C (p.G968A) alteration is located in exon 16 (coding exon 16) of the SPG11 gene. This alteration results from a G to C substitution at nucleotide position 2903, causing the glycine (G) at amino acid position 968 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Hereditary spastic paraplegia 11 Uncertain:1
This sequence change replaces glycine with alanine at codon 968 of the SPG11 protein (p.Gly968Ala). The glycine residue is highly conserved and there is a small physicochemical difference between glycine and alanine. This variant is present in population databases (rs769129678, ExAC 0.003%). This variant has not been reported in the literature in individuals affected with SPG11-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at