15-44663625-G-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_025137.4(SPG11):c.23C>A(p.Ala8Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000346 in 1,443,598 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A8V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

SPG11
NM_025137.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.120

Publications

1 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

SPG11 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07063553).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPG11	NM_025137.4 link	c.23C>A	p.Ala8Glu	missense_variant	Exon 1 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.23C>A	p.Ala8Glu	missense_variant	Exon 1 of 40	1	NM_025137.4	ENSP00000261866.7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000188

AC:

AN:

213258

AF XY:

0.0000169

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000236

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000346

AC:

AN:

1443598

Hom.:

Cov.:

AF XY:

0.00000279

AC XY:

AN XY:

717824

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33378

American (AMR)

AF:

0.00

AC:

AN:

43626

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25768

East Asian (EAS)

AF:

0.000127

AC:

AN:

39454

South Asian (SAS)

AF:

0.00

AC:

AN:

84844

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42566

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5740

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108278

Other (OTH)

AF:

0.00

AC:

AN:

59944

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.445

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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.:

ExAC

AF:

0.00000835

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 11

Uncertain:1

Aug 28, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine with glutamic acid at codon 8 of the SPG11 protein (p.Ala8Glu). The alanine residue is weakly conserved and there is a moderate physicochemical difference between alanine and glutamic acid. This variant is present in population databases (rs200939573, ExAC 0.02%). This variant has not been reported in the literature in individuals affected with SPG11-related conditions. 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.

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.41

CADD

Benign

5.4

(source)

DANN

Benign

0.68

DEOGEN2

Benign

0.0071

T;.;T;.;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.53

T;T;T;T;T

M_CAP

Benign

0.067

MetaRNN

Benign

0.071

T;T;T;T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

0.0

N;N;.;N;.

PhyloP100

0.12

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.28

N;N;N;N;N

REVEL

Benign

0.19

Sift

Benign

0.034

D;D;D;D;D

Sift4G

Uncertain

0.015

D;D;D;D;D

Vest4

0.23

ClinPred

0.062

GERP RS

1.6

PromoterAI

-0.058

Neutral

(source)

Varity_R

0.049

gMVP

0.24

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over