rs886041099

chr9-129818784-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000113.3(TOR1A):c.581A>T(p.Asp194Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D194Y) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TOR1A NM_000113.3 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 5.87

Genes affected

TOR1A (HGNC:3098): (torsin family 1 member A) The protein encoded by this gene is a member of the AAA family of adenosine triphosphatases (ATPases), is related to the Clp protease/heat shock family and is expressed prominently in the substantia nigra pars compacta. Mutations in this gene result in the autosomal dominant disorder, torsion dystonia 1. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.842

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TOR1A	NM_000113.3	c.581A>T	p.Asp194Val	missense_variant	3/5	ENST00000351698.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TOR1A	ENST00000351698.5	c.581A>T	p.Asp194Val	missense_variant	3/5	1	NM_000113.3	P1
TOR1A	ENST00000651202.1	c.677A>T	p.Asp226Val	missense_variant	3/6
TOR1A	ENST00000473604.2	n.691A>T		non_coding_transcript_exon_variant	3/4	5
TOR1A	ENST00000474192.1			upstream_gene_variant		3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

Early-onset generalized limb-onset dystonia Other:1

not provided, no classification provided

literature only

GeneReviews

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.79
BayesDel_addAF	Benign	-0.0073	T
BayesDel_noAF	Benign	-0.25
Cadd	Pathogenic	28
Dann	Uncertain	0.99
DEOGEN2	Uncertain	0.71	D
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.041	D
MetaRNN	Pathogenic	0.84	D
MetaSVM	Benign	-0.37	T
MutationAssessor	Pathogenic	3.2	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.56	T
PROVEAN	Pathogenic	-5.4	D
REVEL	Uncertain	0.44
Sift	Uncertain	0.0010	D
Sift4G	Benign	0.16	T
Polyphen		1.0	D
Vest4		0.72
MutPred		0.61		Gain of catalytic residue at S197 (P = 0.0688);
MVP		0.78
MPC		0.61
ClinPred		0.99	D
GERP RS		6.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.83
gMVP		0.89

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

Other links and lift over

dbSNP: rs886041099; hg19: chr9-132581063;