rs1057518874

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_025137.4(SPG11):​c.3785G>T​(p.Gly1262Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,876 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1262C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SPG11
NM_025137.4 missense

Scores

10
7
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:2

Conservation

PhyloP100: 5.65

Publications

0 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: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.848
PP5
Variant 15-44598738-C-A is Pathogenic according to our data. Variant chr15-44598738-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 374071.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPG11NM_025137.4 linkc.3785G>T p.Gly1262Val missense_variant Exon 22 of 40 ENST00000261866.12 NP_079413.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPG11ENST00000261866.12 linkc.3785G>T p.Gly1262Val missense_variant Exon 22 of 40 1 NM_025137.4 ENSP00000261866.7 Q96JI7-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461876
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111996
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
32

ClinVar

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

Submissions by phenotype

Hereditary spastic paraplegia 11 Pathogenic:1Uncertain:1
Jun 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1262 of the SPG11 protein (p.Gly1262Val). This variant is not present in population databases (gnomAD no frequency). 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: 374071). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae 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. -

Sep 25, 2018
Centre for Mendelian Genomics, University Medical Centre Ljubljana
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was classified as: Likely pathogenic. The following ACMG criteria were applied in classifying this variant: PS1,PM2,PP3. -

Spastic paraparesis;C0311394:Difficulty walking;C0575081:Gait disturbance;C4024949:Generalized hyperreflexia Pathogenic:1
May 05, 2015
Centre for Mendelian Genomics, University Medical Centre Ljubljana
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Dec 18, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 26556829) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.40
D
BayesDel_noAF
Pathogenic
0.33
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
D;.;T;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D;D;D;D
M_CAP
Benign
0.071
D
MetaRNN
Pathogenic
0.85
D;D;D;D
MetaSVM
Uncertain
0.45
D
MutationAssessor
Uncertain
2.7
M;M;.;M
PhyloP100
5.7
PrimateAI
Uncertain
0.61
T
PROVEAN
Pathogenic
-6.0
D;D;D;D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
D;.;D;.
Vest4
0.88
MutPred
0.62
Loss of ubiquitination at K1267 (P = 0.093);Loss of ubiquitination at K1267 (P = 0.093);Loss of ubiquitination at K1267 (P = 0.093);Loss of ubiquitination at K1267 (P = 0.093);
MVP
0.84
MPC
0.29
ClinPred
1.0
D
GERP RS
6.0
Varity_R
0.76
gMVP
0.72
Mutation Taster
=36/64
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs1057518874; hg19: chr15-44890936; API