rs121908395

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP2

The NM_007375.4(TARDBP):​c.869G>C​(p.Gly290Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,672 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TARDBP
NM_007375.4 missense

Scores

3
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 7.62

Publications

19 publications found
Variant links:
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]
MASP2 Gene-Disease associations (from GenCC):
  • immunodeficiency due to MASP-2 deficiency
    Inheritance: AR Classification: STRONG Submitted by: Laboratory for Molecular Medicine

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 2 uncertain in NM_007375.4
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the TARDBP gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 22 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 3.7095 (above the threshold of 3.09). Trascript score misZ: 5.3115 (above the threshold of 3.09). GenCC associations: The gene is linked to amyotrophic lateral sclerosis type 10, frontotemporal dementia with motor neuron disease, amyotrophic lateral sclerosis, inclusion body myositis.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TARDBPNM_007375.4 linkc.869G>C p.Gly290Ala missense_variant Exon 6 of 6 ENST00000240185.8 NP_031401.1 Q13148-1Q9H256A0A024R4E2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TARDBPENST00000240185.8 linkc.869G>C p.Gly290Ala missense_variant Exon 6 of 6 1 NM_007375.4 ENSP00000240185.4 Q13148-1
TARDBPENST00000649624.1 linkc.768+101G>C intron_variant Intron 5 of 5 ENSP00000497327.1 A0A0A0N0M3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461672
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727146
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111842
Other (OTH)
AF:
0.00
AC:
0
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Amyotrophic lateral sclerosis type 10 Pathogenic:1
May 01, 2008
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Amyotrophic lateral sclerosis type 10;C3150169:FRONTOTEMPORAL LOBAR DEGENERATION WITH TDP43 INCLUSIONS, TARDBP-RELATED Uncertain:1
Mar 25, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant has been reported to affect TARDBP protein function (PMID: 19515851, 21123567). This variant has been observed in a family affected with amyotrophic lateral sclerosis (PMID: 18396105). ClinVar contains an entry for this variant (Variation ID: 5231). This variant is not present in population databases (ExAC no frequency). This sequence change replaces glycine with alanine at codon 290 of the TARDBP protein (p.Gly290Ala). The glycine residue is moderately conserved and there is a small physicochemical difference between glycine and alanine. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.24
CADD
Benign
19
DANN
Benign
0.94
DEOGEN2
Uncertain
0.47
T;T;T
Eigen
Benign
0.083
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.90
.;D;D
M_CAP
Benign
0.051
D
MetaRNN
Uncertain
0.71
D;D;D
MetaSVM
Uncertain
-0.14
T
MutationAssessor
Benign
1.4
L;L;.
PhyloP100
7.6
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-0.98
N;.;.
REVEL
Uncertain
0.54
Sift
Benign
0.39
T;.;.
Sift4G
Benign
0.21
T;.;D
Polyphen
0.020
B;B;.
Vest4
0.87
MutPred
0.75
Loss of phosphorylation at S292 (P = 0.1921);Loss of phosphorylation at S292 (P = 0.1921);.;
MVP
0.99
MPC
1.0
ClinPred
0.54
D
GERP RS
5.8
PromoterAI
-0.028
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.43
gMVP
0.92
Mutation Taster
=65/35
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs121908395; hg19: chr1-11082335; API