chr16-89550594-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_003119.4(SPG7):​c.1764G>A​(p.Thr588=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000403 in 1,613,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

SPG7
NM_003119.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -8.19
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 16-89550594-G-A is Benign according to our data. Variant chr16-89550594-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 258909.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-8.19 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPG7NM_003119.4 linkuse as main transcriptc.1764G>A p.Thr588= synonymous_variant 13/17 ENST00000645818.2
SPG7NM_001363850.1 linkuse as main transcriptc.1764G>A p.Thr588= synonymous_variant 13/18
SPG7XM_047434537.1 linkuse as main transcriptc.891G>A p.Thr297= synonymous_variant 8/13
SPG7XM_047434540.1 linkuse as main transcriptc.450G>A p.Thr150= synonymous_variant 5/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPG7ENST00000645818.2 linkuse as main transcriptc.1764G>A p.Thr588= synonymous_variant 13/17 NM_003119.4 P2Q9UQ90-1

Frequencies

GnomAD3 genomes
AF:
0.000144
AC:
22
AN:
152266
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000386
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000678
AC:
17
AN:
250878
Hom.:
0
AF XY:
0.0000516
AC XY:
7
AN XY:
135694
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.000231
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000294
AC:
43
AN:
1460768
Hom.:
0
Cov.:
30
AF XY:
0.0000193
AC XY:
14
AN XY:
726732
show subpopulations
Gnomad4 AFR exome
AF:
0.000239
Gnomad4 AMR exome
AF:
0.000201
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.000144
AC:
22
AN:
152266
Hom.:
0
Cov.:
33
AF XY:
0.000148
AC XY:
11
AN XY:
74392
show subpopulations
Gnomad4 AFR
AF:
0.000386
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000102
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Hereditary spastic paraplegia 7 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 04, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 17, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.65
DANN
Benign
0.72
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.7

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: rs373536584; hg19: chr16-89617002; API