15-44657131-T-C

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_025137.4(SPG11):​c.833A>G​(p.Asn278Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00285 in 1,614,044 control chromosomes in the GnomAD database, including 209 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N278I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0038 ( 26 hom., cov: 32)
Exomes 𝑓: 0.0028 ( 183 hom. )

Consequence

SPG11
NM_025137.4 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13O:1

Conservation

PhyloP100: 0.00700

Publications

6 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0014099479).
BP6
Variant 15-44657131-T-C is Benign according to our data. Variant chr15-44657131-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 316111.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0826 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPG11NM_025137.4 linkc.833A>G p.Asn278Ser missense_variant Exon 4 of 40 ENST00000261866.12 NP_079413.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SPG11ENST00000261866.12 linkc.833A>G p.Asn278Ser missense_variant Exon 4 of 40 1 NM_025137.4 ENSP00000261866.7 Q96JI7-1

Frequencies

GnomAD3 genomes
AF:
0.00379
AC:
576
AN:
152064
Hom.:
27
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000797
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0896
Gnomad SAS
AF:
0.00788
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00670
GnomAD2 exomes
AF:
0.00842
AC:
2116
AN:
251388
AF XY:
0.00787
show subpopulations
Gnomad AFR exome
AF:
0.00105
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.103
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00473
GnomAD4 exome
AF:
0.00276
AC:
4035
AN:
1461864
Hom.:
183
Cov.:
31
AF XY:
0.00273
AC XY:
1985
AN XY:
727230
show subpopulations
African (AFR)
AF:
0.000388
AC:
13
AN:
33480
American (AMR)
AF:
0.000157
AC:
7
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0781
AC:
3101
AN:
39696
South Asian (SAS)
AF:
0.00438
AC:
378
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000405
AC:
45
AN:
1112000
Other (OTH)
AF:
0.00811
AC:
490
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
214
429
643
858
1072
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
68
136
204
272
340
<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:
0.00377
AC:
573
AN:
152180
Hom.:
26
Cov.:
32
AF XY:
0.00394
AC XY:
293
AN XY:
74404
show subpopulations
African (AFR)
AF:
0.000795
AC:
33
AN:
41522
American (AMR)
AF:
0.00111
AC:
17
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.0893
AC:
463
AN:
5186
South Asian (SAS)
AF:
0.00789
AC:
38
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10572
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68010
Other (OTH)
AF:
0.00663
AC:
14
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
28
55
83
110
138
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:
0.000394
Hom.:
3
Bravo
AF:
0.00424
ESP6500AA
AF:
0.00114
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00776
AC:
942
Asia WGS
AF:
0.0490
AC:
171
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:13Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

May 24, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 31182772) -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Hereditary spastic paraplegia 11 Benign:3Other:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

-
Genome-Nilou Lab
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Yunnan Provincial Key Laboratory of Clinical Virology, Institution of Basic and Clinical Medicine of Yunnan Province, The First People's Hospital of Yunnan Province
Significance:Affects
Review Status:no assertion criteria provided
Collection Method:research

- -

not specified Benign:2
Feb 18, 2022
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

SPG11-related disorder Benign:1
Oct 22, 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 18, 2021
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Amyotrophic lateral sclerosis type 5 Benign:1
-
Genome-Nilou Lab
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease axonal type 2X Benign:1
-
Genome-Nilou Lab
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.062
BayesDel_addAF
Benign
-0.67
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
3.6
DANN
Benign
0.40
DEOGEN2
Benign
0.015
T;.;T;.;.
Eigen
Benign
-0.94
Eigen_PC
Benign
-0.90
FATHMM_MKL
Benign
0.039
N
LIST_S2
Benign
0.79
T;T;T;T;T
MetaRNN
Benign
0.0014
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.8
L;L;.;L;.
PhyloP100
0.0070
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.85
N;N;N;N;N
REVEL
Benign
0.013
Sift
Benign
0.49
T;T;T;T;T
Sift4G
Benign
0.91
T;T;T;T;T
Polyphen
0.012
B;.;B;.;.
Vest4
0.30
MVP
0.13
MPC
0.032
ClinPred
0.0015
T
GERP RS
-0.41
Varity_R
0.029
gMVP
0.12
Mutation Taster
=99/1
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs75309308; hg19: chr15-44949329; COSMIC: COSV56001672; API