rs150761878

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_025137.4(SPG11):​c.6258G>T​(p.Leu2086Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0058 in 1,614,044 control chromosomes in the GnomAD database, including 54 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. L2086L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0052 ( 6 hom., cov: 31)
Exomes 𝑓: 0.0059 ( 48 hom. )

Consequence

SPG11
NM_025137.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:10

Conservation

PhyloP100: -0.0190

Publications

5 publications found
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]
SPG11 Gene-Disease associations (from GenCC):
  • hereditary spastic paraplegia 11
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Illumina, G2P
  • amyotrophic lateral sclerosis type 5
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • Charcot-Marie-Tooth disease axonal type 2X
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
  • juvenile amyotrophic lateral sclerosis
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.61).
BP6
Variant 15-44572768-C-A is Benign according to our data. Variant chr15-44572768-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 130366.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00517 (787/152216) while in subpopulation NFE AF = 0.00604 (411/68016). AF 95% confidence interval is 0.00556. There are 6 homozygotes in GnomAd4. There are 444 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPG11NM_025137.4 linkc.6258G>T p.Leu2086Leu synonymous_variant Exon 33 of 40 ENST00000261866.12 NP_079413.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPG11ENST00000261866.12 linkc.6258G>T p.Leu2086Leu synonymous_variant Exon 33 of 40 1 NM_025137.4 ENSP00000261866.7 Q96JI7-1

Frequencies

GnomAD3 genomes
AF:
0.00517
AC:
786
AN:
152098
Hom.:
6
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00413
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000828
Gnomad FIN
AF:
0.0234
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00604
Gnomad OTH
AF:
0.00671
GnomAD2 exomes
AF:
0.00656
AC:
1650
AN:
251484
AF XY:
0.00633
show subpopulations
Gnomad AFR exome
AF:
0.00117
Gnomad AMR exome
AF:
0.00601
Gnomad ASJ exome
AF:
0.000893
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0241
Gnomad NFE exome
AF:
0.00708
Gnomad OTH exome
AF:
0.0111
GnomAD4 exome
AF:
0.00587
AC:
8578
AN:
1461828
Hom.:
48
Cov.:
32
AF XY:
0.00563
AC XY:
4093
AN XY:
727224
show subpopulations
African (AFR)
AF:
0.000866
AC:
29
AN:
33478
American (AMR)
AF:
0.00593
AC:
265
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00119
AC:
31
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.000719
AC:
62
AN:
86256
European-Finnish (FIN)
AF:
0.0264
AC:
1408
AN:
53420
Middle Eastern (MID)
AF:
0.00416
AC:
24
AN:
5768
European-Non Finnish (NFE)
AF:
0.00581
AC:
6458
AN:
1111952
Other (OTH)
AF:
0.00498
AC:
301
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
472
944
1416
1888
2360
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
232
464
696
928
1160
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00517
AC:
787
AN:
152216
Hom.:
6
Cov.:
31
AF XY:
0.00597
AC XY:
444
AN XY:
74416
show subpopulations
African (AFR)
AF:
0.000963
AC:
40
AN:
41536
American (AMR)
AF:
0.00412
AC:
63
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5168
South Asian (SAS)
AF:
0.00104
AC:
5
AN:
4826
European-Finnish (FIN)
AF:
0.0234
AC:
248
AN:
10604
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.00604
AC:
411
AN:
68016
Other (OTH)
AF:
0.00664
AC:
14
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
41
82
122
163
204
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00435
Hom.:
2
Bravo
AF:
0.00369
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00469
EpiControl
AF:
0.00634

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:10
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 11 Uncertain:1Benign:4
Jan 04, 2017
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

Jun 28, 2017
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1Benign:2
Sep 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SPG11: BP4, BP7, BS2 -

Mar 29, 2018
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 06, 2014
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Oct 31, 2017
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Inborn genetic diseases Benign:1
Jul 11, 2019
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

SPG11-related disorder Benign:1
Jun 15, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

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
Nov 15, 2021
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.61
CADD
Benign
5.4
DANN
Benign
0.63
PhyloP100
-0.019
PromoterAI
-0.019
Neutral
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs150761878; hg19: chr15-44864966; COSMIC: COSV99969966; COSMIC: COSV99969966; API