Variant 2-32063841-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_014946.4(SPAST):c.10C>G(p.Pro4Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000842 in 1,424,454 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P4S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000084 ( 0 hom. )

Consequence

SPAST
NM_014946.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.43

Variant links:

Genes affected

SPAST (HGNC:11233): (spastin) This gene encodes a member of the AAA (ATPases associated with a variety of cellular activities) protein 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. The use of alternative translational initiation sites in this gene results in a single transcript variant that can produce isoforms that differ in the length of their N-terminus and which thereby differ in the efficiency of their export from the nucleus to the cytoplasm. In addition, alternative splicing results in multiple transcript variants that encode isoforms that differ in other protein regions as well. One isoform of this gene has been shown to be a microtubule-severing enzyme that regulates microtubule abundance, mobility, and plus-end distribution. Mutations in this gene cause the most frequent form of autosomal dominant spastic paraplegia 4. [provided by RefSeq, May 2018]

SPAST links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.34673357).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SPAST	NM_014946.4 linkuse as main transcript	c.10C>G	p.Pro4Ala	missense_variant	1/17	ENST00000315285.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPAST	ENST00000315285.9 linkuse as main transcript	c.10C>G	p.Pro4Ala	missense_variant	1/17	1	NM_014946.4	P4	Q9UBP0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000103

AC:

AN:

194184

Hom.:

AF XY:

0.00000935

AC XY:

AN XY:

107002

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000361

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000842

AC:

AN:

1424454

Hom.:

Cov.:

AF XY:

0.00000990

AC XY:

AN XY:

707056

show subpopulations

Gnomad4 AFR exome

AF:

0.0000303

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000239

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000817

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

May 01, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

0.030

Cadd

Uncertain

Dann

Benign

0.96

DEOGEN2

Benign

0.25

T;T;.;.;.;.

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.043

FATHMM_MKL

Benign

0.58

M_CAP

Pathogenic

0.99

MetaRNN

Benign

0.35

T;T;T;T;T;T

MetaSVM

Uncertain

0.35

MutationAssessor

Benign

0.69

N;N;N;N;.;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-1.0

N;.;N;.;.;.

REVEL

Uncertain

0.43

Sift

Pathogenic

0.0

D;.;D;.;.;.

Sift4G

Pathogenic

0.0

D;D;D;.;.;.

Polyphen

0.39

B;B;.;.;.;.

Vest4

0.48

MutPred

0.22

Loss of methylation at K9 (P = 0.0794);Loss of methylation at K9 (P = 0.0794);Loss of methylation at K9 (P = 0.0794);Loss of methylation at K9 (P = 0.0794);Loss of methylation at K9 (P = 0.0794);Loss of methylation at K9 (P = 0.0794);

MVP

0.69

MPC

0.12

ClinPred

0.43

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.29

gMVP

0.089

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over