rs150571352

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BS1_Supporting

The NM_025137.4(SPG11):c.7132T>C(p.Phe2378Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000131 in 1,613,930 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

SPG11
NM_025137.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:8B:1

Conservation

PhyloP100: 4.81

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BS1

Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.000133 (195/1461702) while in subpopulation MID AF= 0.00663 (38/5728). AF 95% confidence interval is 0.00497. There are 0 homozygotes in gnomad4_exome. There are 108 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPG11	NM_025137.4 link	c.7132T>C	p.Phe2378Leu	missense_variant	Exon 39 of 40	ENST00000261866.12	NP_079413.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPG11	ENST00000261866.12 link	c.7132T>C	p.Phe2378Leu	missense_variant	Exon 39 of 40	1	NM_025137.4	ENSP00000261866.7		Q96JI7-1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000203

AC:

AN:

251000

Hom.:

AF XY:

0.000206

AC XY:

AN XY:

135790

show subpopulations

Gnomad AFR exome

AF:

0.0000621

Gnomad AMR exome

AF:

0.000434

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000264

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.000133

AC:

195

AN:

1461702

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

108

AN XY:

727160

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000380

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000103

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000112

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000167

Hom.:

Bravo

AF:

0.000140

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000237

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:8Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 11

Uncertain:2

Sep 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 2378 of the SPG11 protein (p.Phe2378Leu). This variant is present in population databases (rs150571352, gnomAD 0.04%). This missense change has been observed in individual(s) with clinical features of SPG11-related conditions (PMID: 27066562). ClinVar contains an entry for this variant (Variation ID: 216774). 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: "Possibly 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. -

Jul 11, 2022

Johns Hopkins Genomics, Johns Hopkins University

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This SPG11 variant (rs150571352) is rare (<0.1%) in a large population dataset (gnomAD: 52/282406 total alleles; 0.02%; no homozygotes) and has been reported in ClinVar. Of three bioinformatics tools queried, two predict that the substitution would be damaging while another predicts that it would be tolerated. The phenylalanine residue at this position is strongly evolutionarily conserved across the vertebrate species assessed. Bioinformatic analysis predicts that this missense variant would not affect normal exon 39 splicing, although this has not been confirmed experimentally to our knowledge. This variant was identified in a homozygous state in a single family with juvenile motor neuron disease. However, an additional homozygous nonsense variant in the SPG11 gene (c.2250delT) was also identified in affected family members making the functional impact of c.7132T>C alone unclear. Due to insufficient evidence, we consider the clinical significance of c.7132T>C to be uncertain at this time. -

Inborn genetic diseases

Uncertain:1

Nov 27, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.7132T>C (p.F2378L) alteration is located in exon 39 (coding exon 39) of the SPG11 gene. This alteration results from a T to C substitution at nucleotide position 7132, causing the phenylalanine (F) at amino acid position 2378 to be replaced by a leucine (L). The altered amino acid is well conserved throughout evolution:_x000D_ _x000D_ The p.F2378 amino acid is conserved in available primate species. The alteration is predicted deleterious by in silico models:_x000D_ _x000D_ The p.F2378L alteration is predicted to be probably damaging by Polyphen and deleterious by SIFT in silico analyses. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Hereditary spastic paraplegia 11;C1865864:Amyotrophic lateral sclerosis type 5;C5569024:Charcot-Marie-Tooth disease axonal type 2X

Uncertain:1

Apr 02, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hereditary spastic paraplegia

Uncertain:1

Jan 14, 2020

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Uncertain:1

Mar 27, 2023

Clinical Genetics Laboratory, Skane University Hospital Lund

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Intellectual disability

Uncertain:1

Jan 01, 2019

Centre de Biologie Pathologie Génétique, Centre Hospitalier Universitaire de Lille

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Amyotrophic lateral sclerosis type 5

Uncertain:1

May 05, 2020

Baylor Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

not specified

Benign:1

Feb 05, 2018

GeneDx

Significance: Likely 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.11

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.066

T;.

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.082

MetaRNN

Uncertain

0.65

D;D

MetaSVM

Uncertain

-0.15

MutationAssessor

Uncertain

2.2

M;.

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-1.0

N;N

REVEL

Uncertain

0.34

Sift

Uncertain

0.0080

D;T

Sift4G

Uncertain

0.026

D;D

Polyphen

1.0

D;.

Vest4

0.81

MutPred

0.30

Gain of disorder (P = 0.0827);.;

MVP

0.76

MPC

0.18

ClinPred

0.10

GERP RS

5.0

Varity_R

0.15

gMVP

0.49

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over