rs147713329

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_025137.4(SPG11):​c.6091C>T​(p.Arg2031Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SPG11
NM_025137.4 stop_gained

Scores

2
3
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:11O:1

Conservation

PhyloP100: 0.759
Variant links:
Genes affected
SPG11 (HGNC:11226): (SPG11 vesicle trafficking associated, spatacsin) The protein encoded by this gene is a potential transmembrane protein that is phosphorylated upon DNA damage. Defects in this gene are a cause of spastic paraplegia type 11 (SPG11). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 15-44573661-G-A is Pathogenic according to our data. Variant chr15-44573661-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 41340.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPG11NM_025137.4 linkuse as main transcriptc.6091C>T p.Arg2031Ter stop_gained 32/40 ENST00000261866.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPG11ENST00000261866.12 linkuse as main transcriptc.6091C>T p.Arg2031Ter stop_gained 32/401 NM_025137.4 Q96JI7-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461886
Hom.:
0
Cov.:
30
AF XY:
0.00000688
AC XY:
5
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000170
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:11Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 11 Pathogenic:4Other:1
Pathogenic, criteria provided, single submitterclinical testingNeuberg Centre For Genomic Medicine, NCGM-The stop gained variant c.6091C>T (p.Arg2031Ter) in the SPG11 gene has been reported in the compound heterozygous and homozygous state in individuals affected with hereditary spastic paraplegia (Travaglini et al., 2018; Kara et al., 2016). The variant is absent in gnomAD Exomes. It has been submitted to ClinVar as Pathogenic (Multiple submitters). This variant is predicted to cause loss of normal protein function through protein truncation. Loss of function variants has been previously reported to be disease causing. For these reasons, this variant has been classified as Pathogenic. In the absence of another reportable variant, the molecular diagnosis is not confirmed. -
not provided, no classification providedliterature onlyGeneReviews-- -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024This sequence change creates a premature translational stop signal (p.Arg2031*) in the SPG11 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in SPG11 are known to be pathogenic (PMID: 19105190, 20110243, 22154821, 26556829). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individuals with hereditary spastic paraplegia (PMID: 18408091, 29691679). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 41340). For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingGenome-Nilou Lab-- -
Pathogenic, criteria provided, single submitterclinical testing3billionJan 03, 2022Stop-gained (nonsense): predicted to result in a loss or disruption of normal protein function through nonsense-mediated decay (NMD) or protein truncation. Multiple pathogenic variants are reported downstream of the variant (PVS1_VS). It is not observed in the gnomAD v2.1.1 dataset (PM2_M). The variant has been reported at least twice as pathogenic/likely pathogenic with clinical assertions and evidence for the classification (ClinVar ID: VCV000041340, PMID:18408091). Therefore, this variant is classified as pathogenic according to the recommendation of ACMG/AMP guideline. -
not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingAthena DiagnosticsOct 13, 2022This variant is expected to result in the loss of a functional protein. This variant segregates with disease in multiple families. This variant has not been reported in large, multi-ethnic general populations (http://gnomad.broadinstitute.org). -
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2017- -
Pathogenic, criteria provided, single submitterclinical testingGeneDxApr 27, 2022Reported in several members of one family with hereditary spastic paraplegia who also harbor a frameshift variant on the opposite allele (in trans) (Lee et al., 2008); Nonsense variant predicted to result in protein truncation or nonsense-mediated decay in a gene for which loss of function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 25525159, 31227335, 31692161, 29691679, 18408091) -
Hereditary spastic paraplegia Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, The Hospital for Sick ChildrenDec 12, 2016- -
Pathogenic, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpOct 31, 2023Variant summary: SPG11 c.6091C>T (p.Arg2031X) results in a premature termination codon, predicted to cause absence of the protein due to nonsense mediated decay, a commonly known mechanism for disease. The variant was absent in 251360 control chromosomes (gnomAD). c.6091C>T has been reported in the literature in multiple individuals affected with Hereditary Spastic Paraplegia, Type 11 (e.g. Denora_2009). These data indicate that the variant is very likely to be associated with disease. The following publication have been ascertained in the context of this evaluation (PMID: 19105190). Seven submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -
Amyotrophic lateral sclerosis type 5 Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingGenome-Nilou Lab-- -
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 26, 2019This variant was determined to be pathogenic according to ACMG Guidelines, 2015 [PMID:25741868]. This variant has been previously reported as disease causing [PMID 18408091, 29691679, 25525159] -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.51
CADD
Pathogenic
36
DANN
Uncertain
1.0
Eigen
Uncertain
0.35
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.83
D
MutationTaster
Benign
1.0
A;A;D;D
Vest4
0.91
GERP RS
2.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs147713329; hg19: chr15-44865859; COSMIC: COSV55991054; COSMIC: COSV55991054; API