rs76389165

Variant summary

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

The NM_025137.4(SPG11):​c.3818A>G​(p.Lys1273Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00205 in 1,614,194 control chromosomes in the GnomAD database, including 42 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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. K1273T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0079 ( 16 hom., cov: 32)
Exomes 𝑓: 0.0014 ( 26 hom. )

Consequence

SPG11
NM_025137.4 missense

Scores

4
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:13

Conservation

PhyloP100: 3.15

Publications

8 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 (MetaRNN=0.0072818696).
BP6
Variant 15-44598705-T-C is Benign according to our data. Variant chr15-44598705-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 130365.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00791 (1205/152312) while in subpopulation AFR AF = 0.025 (1038/41568). AF 95% confidence interval is 0.0237. There are 16 homozygotes in GnomAd4. There are 535 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 16 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SPG11NM_025137.4 linkc.3818A>G p.Lys1273Arg 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.3818A>G p.Lys1273Arg missense_variant Exon 22 of 40 1 NM_025137.4 ENSP00000261866.7 Q96JI7-1

Frequencies

GnomAD3 genomes
AF:
0.00790
AC:
1203
AN:
152194
Hom.:
16
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0250
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00544
Gnomad ASJ
AF:
0.000865
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000911
Gnomad OTH
AF:
0.00765
GnomAD2 exomes
AF:
0.00269
AC:
675
AN:
251288
AF XY:
0.00231
show subpopulations
Gnomad AFR exome
AF:
0.0264
Gnomad AMR exome
AF:
0.00312
Gnomad ASJ exome
AF:
0.00139
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000872
Gnomad OTH exome
AF:
0.00326
GnomAD4 exome
AF:
0.00144
AC:
2110
AN:
1461882
Hom.:
26
Cov.:
31
AF XY:
0.00136
AC XY:
989
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.0278
AC:
930
AN:
33480
American (AMR)
AF:
0.00360
AC:
161
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00187
AC:
49
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39696
South Asian (SAS)
AF:
0.000139
AC:
12
AN:
86258
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53420
Middle Eastern (MID)
AF:
0.00728
AC:
42
AN:
5768
European-Non Finnish (NFE)
AF:
0.000646
AC:
718
AN:
1112004
Other (OTH)
AF:
0.00325
AC:
196
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
149
298
447
596
745
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
48
96
144
192
240
<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:
0.00791
AC:
1205
AN:
152312
Hom.:
16
Cov.:
32
AF XY:
0.00718
AC XY:
535
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.0250
AC:
1038
AN:
41568
American (AMR)
AF:
0.00543
AC:
83
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.000865
AC:
3
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10622
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.000911
AC:
62
AN:
68030
Other (OTH)
AF:
0.00757
AC:
16
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
59
119
178
238
297
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:
0.00328
Hom.:
13
Bravo
AF:
0.00955
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00130
AC:
5
ESP6500AA
AF:
0.0248
AC:
109
ESP6500EA
AF:
0.00116
AC:
10
ExAC
AF:
0.00311
AC:
377
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.00136
EpiControl
AF:
0.00130

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:13
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Benign:4
-
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Dec 10, 2021
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 23, 2020
Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 10, 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. -

not provided Benign:4
Jan 02, 2018
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SPG11: BS1, BS2 -

Apr 05, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Hereditary spastic paraplegia 11 Benign:4
Oct 09, 2014
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

Nov 21, 2017
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Hereditary spastic paraplegia Uncertain:1Benign:1
Mar 07, 2017
Unit for Genetic & Epidemiological Research on Neurological Disorders, Instituto de Investigação e Inovação em Saúde
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Jun 14, 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
AlphaMissense
Benign
0.099
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.028
T;.;T;.
Eigen
Benign
0.13
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.85
D;D;D;D
MetaRNN
Benign
0.0073
T;T;T;T
MetaSVM
Benign
-0.70
T
MutationAssessor
Benign
1.6
L;L;.;L
PhyloP100
3.1
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
-0.42
N;N;N;N
REVEL
Benign
0.26
Sift
Benign
0.39
T;T;T;T
Sift4G
Benign
0.34
T;T;T;D
Polyphen
0.12
B;.;P;.
Vest4
0.32
MVP
0.79
MPC
0.033
ClinPred
0.032
T
GERP RS
6.0
Varity_R
0.096
gMVP
0.22
Mutation Taster
=98/2
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: rs76389165; hg19: chr15-44890903; API