rs1131690782

Positions:

• chr1-11022452-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1 PM2 PM5 PP2 PP5_Moderate

The NM_007375.4(TARDBP):​c.1043G>T​(p.Gly348Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,640 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G348C) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TARDBP NM_007375.4 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 6.52

Genes affected

TARDBP (HGNC:11571): (TAR DNA binding protein) HIV-1, the causative agent of acquired immunodeficiency syndrome (AIDS), contains an RNA genome that produces a chromosomally integrated DNA during the replicative cycle. Activation of HIV-1 gene expression by the transactivator Tat is dependent on an RNA regulatory element (TAR) located downstream of the transcription initiation site. The protein encoded by this gene is a transcriptional repressor that binds to chromosomally integrated TAR DNA and represses HIV-1 transcription. In addition, this protein regulates alternate splicing of the CFTR gene. A similar pseudogene is present on chromosome 20. [provided by RefSeq, Jul 2008]

MASP2 (HGNC:6902): (MBL associated serine protease 2) This gene encodes a member of the peptidase S1 family of serine proteases. The encoded preproprotein is proteolytically processed to generate A and B chains that heterodimerize to form the mature protease. This protease cleaves complement components C2 and C4 in order to generate C3 convertase in the lectin pathway of the complement system. The encoded protease also plays a role in the coagulation cascade through cleavage of prothrombin to form thrombin. Myocardial infarction and acute stroke patients exhibit reduced serum concentrations of the encoded protein. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Feb 2016]

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PM1: In a region_of_interest Interaction with UBQLN2 (size 198) in uniprot entity TADBP_HUMAN there are 57 pathogenic changes around while only 0 benign (100%) in NM_007375.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr1-11022451-G-T is described in Lovd as [Pathogenic].
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TARDBP. . Gene score misZ 3.7095 (greater than the threshold 3.09). Trascript score misZ 5.3115 (greater than threshold 3.09). GenCC has associacion of gene with amyotrophic lateral sclerosis type 10, amyotrophic lateral sclerosis, frontotemporal dementia with motor neuron disease.
• PP5: Variant 1-11022452-G-T is Pathogenic according to our data. Variant chr1-11022452-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 266064.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-11022452-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TARDBP	NM_007375.4	c.1043G>T	p.Gly348Val	missense_variant	6/6	ENST00000240185.8	NP_031401.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TARDBP	ENST00000240185.8	c.1043G>T	p.Gly348Val	missense_variant	6/6	1	NM_007375.4	ENSP00000240185	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460640 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726424

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Motor neuron disease Pathogenic:1

Pathogenic, criteria provided, single submitter

case-control

Centre for Genomic and Experimental Medicine, University of Edinburgh

Aug 31, 2016

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.33
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.56	D;D;.
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.47
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.91	.;D;D
M_CAP	Benign	0.048	D
MetaRNN	Uncertain	0.74	D;D;D
MetaSVM	Uncertain	0.10	D
MutationAssessor	Benign	1.7	L;L;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-1.8	N;.;.
REVEL	Uncertain	0.55
Sift	Uncertain	0.013	D;.;.
Sift4G	Uncertain	0.0040	D;.;.
Polyphen		0.44	B;B;.
Vest4		0.89
MutPred		0.45		Loss of glycosylation at S347 (P = 0.0278);Loss of glycosylation at S347 (P = 0.0278);.;
MVP		0.98
MPC		2.0
ClinPred		0.80	D
GERP RS		5.8
Varity_R		0.73
gMVP		0.95

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: rs1131690782; hg19: chr1-11082509;