rs768823392

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PM4PP3PP5_Very_Strong

The NM_003119.4(SPG7):​c.1454_1462delGGCGGGAGA​(p.Arg485_Glu487del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000354 in 1,606,364 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R485R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00040 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00035 ( 0 hom. )

Consequence

SPG7
NM_003119.4 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:32U:1O:1

Conservation

PhyloP100: 9.91

Publications

1 publications found
Variant links:
Genes affected
SPG7 (HGNC:11237): (SPG7 matrix AAA peptidase subunit, paraplegin) This gene encodes a mitochondrial metalloprotease protein that is a member of the AAA family. Members of this protein family share an ATPase domain and have roles in diverse cellular processes including membrane trafficking, intracellular motility, organelle biogenesis, protein folding, and proteolysis. Mutations in this gene cause autosomal recessive spastic paraplegia 7. Two transcript variants encoding distinct isoforms have been identified. [provided by RefSeq, Mar 2014]
SPG7 Gene-Disease associations (from GenCC):
  • hereditary spastic paraplegia 7
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, PanelApp Australia, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
  • autosomal dominant optic atrophy
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
  • lateral sclerosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_003119.4.
PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
PP5
Variant 16-89546656-AGGAGAGGCG-A is Pathogenic according to our data. Variant chr16-89546656-AGGAGAGGCG-A is described in ClinVar as Pathogenic. ClinVar VariationId is 411680.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003119.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPG7
NM_003119.4
MANE Select
c.1454_1462delGGCGGGAGAp.Arg485_Glu487del
disruptive_inframe_deletion
Exon 11 of 17NP_003110.1Q9UQ90-1
SPG7
NM_001363850.1
c.1454_1462delGGCGGGAGAp.Arg485_Glu487del
disruptive_inframe_deletion
Exon 11 of 18NP_001350779.1A0A2R8Y3M4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPG7
ENST00000645818.2
MANE Select
c.1454_1462delGGCGGGAGAp.Arg485_Glu487del
disruptive_inframe_deletion
Exon 11 of 17ENSP00000495795.2Q9UQ90-1
SPG7
ENST00000268704.7
TSL:1
c.1433_1441delGGCGGGAGAp.Arg478_Glu480del
disruptive_inframe_deletion
Exon 11 of 17ENSP00000268704.3A0A2U3TZH1
SPG7
ENST00000918773.1
c.1544_1552delGGCGGGAGAp.Arg515_Glu517del
disruptive_inframe_deletion
Exon 11 of 17ENSP00000588832.1

Frequencies

GnomAD3 genomes
AF:
0.000402
AC:
61
AN:
151660
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00123
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000559
Gnomad OTH
AF:
0.000961
GnomAD2 exomes
AF:
0.000259
AC:
65
AN:
251444
AF XY:
0.000228
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000739
Gnomad NFE exome
AF:
0.000404
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000349
AC:
507
AN:
1454586
Hom.:
0
AF XY:
0.000338
AC XY:
245
AN XY:
723946
show subpopulations
African (AFR)
AF:
0.0000902
AC:
3
AN:
33260
American (AMR)
AF:
0.0000224
AC:
1
AN:
44644
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25980
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39426
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86156
European-Finnish (FIN)
AF:
0.000565
AC:
30
AN:
53082
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.000410
AC:
454
AN:
1106366
Other (OTH)
AF:
0.000300
AC:
18
AN:
59932
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.422
Heterozygous variant carriers
0
23
47
70
94
117
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
AF:
0.000402
AC:
61
AN:
151778
Hom.:
0
Cov.:
31
AF XY:
0.000418
AC XY:
31
AN XY:
74172
show subpopulations
African (AFR)
AF:
0.000145
AC:
6
AN:
41378
American (AMR)
AF:
0.000131
AC:
2
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3460
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5110
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4800
European-Finnish (FIN)
AF:
0.00123
AC:
13
AN:
10542
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000559
AC:
38
AN:
67920
Other (OTH)
AF:
0.000951
AC:
2
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000464
Hom.:
0
EpiCase
AF:
0.000436
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
19
-
-
Hereditary spastic paraplegia 7 (20)
7
-
-
not provided (7)
3
-
-
Hereditary spastic paraplegia (3)
-
1
-
Distal spinal muscular atrophy (1)
1
-
-
Dysarthria;C0037771:Spastic paraparesis;C0751837:Gait ataxia;C4551583:Cerebral cortical atrophy (1)
1
-
-
Inborn genetic diseases (1)
1
-
-
Seizure;C0037772:Spastic paraplegia;C0233794:Memory impairment;C0751837:Gait ataxia (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
9.9
Mutation Taster
=3/197
disease causing (ClinVar)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs768823392; hg19: chr16-89613064; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.