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GeneBe

rs11559075

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_003119.4(SPG7):​c.2280G>A​(p.Pro760=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.013 in 1,613,870 control chromosomes in the GnomAD database, including 158 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 14 hom., cov: 32)
Exomes 𝑓: 0.013 ( 144 hom. )

Consequence

SPG7
NM_003119.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -1.03
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 16-89556985-G-A is Benign according to our data. Variant chr16-89556985-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 139249.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-89556985-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-1.03 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0104 (1579/152306) while in subpopulation EAS AF= 0.0178 (92/5176). AF 95% confidence interval is 0.0148. There are 14 homozygotes in gnomad4. There are 743 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 14 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPG7NM_003119.4 linkuse as main transcriptc.2280G>A p.Pro760= synonymous_variant 17/17 ENST00000645818.2
SPG7XM_047434540.1 linkuse as main transcriptc.966G>A p.Pro322= synonymous_variant 9/9
SPG7NM_001363850.1 linkuse as main transcriptc.*58G>A 3_prime_UTR_variant 18/18
SPG7XM_047434537.1 linkuse as main transcriptc.*58G>A 3_prime_UTR_variant 13/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPG7ENST00000645818.2 linkuse as main transcriptc.2280G>A p.Pro760= synonymous_variant 17/17 NM_003119.4 P2Q9UQ90-1

Frequencies

GnomAD3 genomes
AF:
0.0104
AC:
1577
AN:
152188
Hom.:
14
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00253
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00550
Gnomad ASJ
AF:
0.00893
Gnomad EAS
AF:
0.0177
Gnomad SAS
AF:
0.00600
Gnomad FIN
AF:
0.0182
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0151
Gnomad OTH
AF:
0.00814
GnomAD3 exomes
AF:
0.0126
AC:
3159
AN:
251310
Hom.:
20
AF XY:
0.0118
AC XY:
1606
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.00246
Gnomad AMR exome
AF:
0.0131
Gnomad ASJ exome
AF:
0.00595
Gnomad EAS exome
AF:
0.0178
Gnomad SAS exome
AF:
0.00657
Gnomad FIN exome
AF:
0.0139
Gnomad NFE exome
AF:
0.0150
Gnomad OTH exome
AF:
0.0122
GnomAD4 exome
AF:
0.0133
AC:
19375
AN:
1461564
Hom.:
144
Cov.:
31
AF XY:
0.0130
AC XY:
9456
AN XY:
727082
show subpopulations
Gnomad4 AFR exome
AF:
0.00188
Gnomad4 AMR exome
AF:
0.0118
Gnomad4 ASJ exome
AF:
0.00727
Gnomad4 EAS exome
AF:
0.0209
Gnomad4 SAS exome
AF:
0.00684
Gnomad4 FIN exome
AF:
0.0143
Gnomad4 NFE exome
AF:
0.0140
Gnomad4 OTH exome
AF:
0.0127
GnomAD4 genome
AF:
0.0104
AC:
1579
AN:
152306
Hom.:
14
Cov.:
32
AF XY:
0.00998
AC XY:
743
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00253
Gnomad4 AMR
AF:
0.00549
Gnomad4 ASJ
AF:
0.00893
Gnomad4 EAS
AF:
0.0178
Gnomad4 SAS
AF:
0.00642
Gnomad4 FIN
AF:
0.0182
Gnomad4 NFE
AF:
0.0151
Gnomad4 OTH
AF:
0.00806
Alfa
AF:
0.0129
Hom.:
15
Bravo
AF:
0.00910
Asia WGS
AF:
0.0210
AC:
73
AN:
3478
EpiCase
AF:
0.0112
EpiControl
AF:
0.0104

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 7 Benign:3
Benign, criteria provided, single submitterclinical testingInvitaeJan 28, 2024- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 29, 2023- -
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
not specified Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxDec 03, 2013This 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. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Hereditary spastic paraplegia Benign:1
Benign, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, The Hospital for Sick ChildrenNov 20, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
0.45
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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.

Other links and lift over

dbSNP: rs11559075; hg19: chr16-89623393; API