15-44657131-T-C
Variant summary
Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1
The NM_025137.4(SPG11):c.833A>G(p.Asn278Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00285 in 1,614,044 control chromosomes in the GnomAD database, including 209 homozygotes. 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N278I) 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: Benign. The variant received -20 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SPG11 | NM_025137.4 | c.833A>G | p.Asn278Ser | missense_variant | Exon 4 of 40 | ENST00000261866.12 | NP_079413.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00379 AC: 576AN: 152064Hom.: 27 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00842 AC: 2116AN: 251388 AF XY: 0.00787 show subpopulations
GnomAD4 exome AF: 0.00276 AC: 4035AN: 1461864Hom.: 183 Cov.: 31 AF XY: 0.00273 AC XY: 1985AN XY: 727230 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00377 AC: 573AN: 152180Hom.: 26 Cov.: 32 AF XY: 0.00394 AC XY: 293AN XY: 74404 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:4
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This variant is associated with the following publications: (PMID: 31182772) -
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Hereditary spastic paraplegia 11 Benign:3Other:1
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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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
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not specified Benign:2
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SPG11-related disorder Benign:1
This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Hereditary spastic paraplegia Benign:1
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Amyotrophic lateral sclerosis type 5 Benign:1
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Charcot-Marie-Tooth disease axonal type 2X Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at