16-89508422-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003119.4(SPG7):​c.5C>T​(p.Ala2Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000268 in 1,490,178 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

SPG7
NM_003119.4 missense

Scores

4
4
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.607
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 Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPG7NM_003119.4 linkc.5C>T p.Ala2Val missense_variant 1/17 ENST00000645818.2 NP_003110.1 Q9UQ90-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPG7ENST00000645818.2 linkc.5C>T p.Ala2Val missense_variant 1/17 NM_003119.4 ENSP00000495795.2 Q9UQ90-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152108
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000224
AC:
3
AN:
1338070
Hom.:
0
Cov.:
31
AF XY:
0.00000455
AC XY:
3
AN XY:
659848
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000267
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.44e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152108
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74296
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Uncertain
0.085
D
BayesDel_noAF
Benign
-0.12
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.054
T;.;.;.;.;.;.;.;.;.
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.36
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.51
T;T;T;T;T;T;T;T;T;T
M_CAP
Pathogenic
0.90
D
MetaRNN
Uncertain
0.49
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
1.1
L;.;.;.;.;.;.;.;.;L
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-0.63
.;.;.;.;.;.;.;.;N;N
REVEL
Benign
0.20
Sift
Pathogenic
0.0
.;.;.;.;.;.;.;.;D;D
Sift4G
Pathogenic
0.0
.;.;.;.;.;.;.;.;D;D
Polyphen
0.096
B;.;.;.;.;.;.;.;.;P
Vest4
0.25, 0.26
MutPred
0.40
Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);
MVP
0.85
MPC
0.20
ClinPred
0.90
D
GERP RS
3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.21
gMVP
0.62

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: rs973170664; hg19: chr16-89574830; API