6-166165800-T-C

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_001366285.2(TBXT):c.512A>G(p.His171Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TBXT
NM_001366285.2 missense

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.47

Publications

2 publications found

Variant links:

Genes affected

TBXT (HGNC:11515): (T-box transcription factor T) The protein encoded by this gene is an embryonic nuclear transcription factor that binds to a specific DNA element, the palindromic T-site. It binds through a region in its N-terminus, called the T-box, and effects transcription of genes required for mesoderm formation and differentiation. The protein is localized to notochord-derived cells. Variation in this gene was associated with susceptibility to neural tube defects and chordoma. A mutation in this gene was found in a family with sacral agenesis with vertebral anomalies. [provided by RefSeq, Sep 2018]

TBXT Gene-Disease associations (from GenCC):

chordoma
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
sacral agenesis-abnormal ossification of the vertebral bodies-persistent notochordal canal syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

TBXT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.982

PP5

Variant 6-166165800-T-C is Pathogenic according to our data. Variant chr6-166165800-T-C is described in ClinVar as Pathogenic. ClinVar VariationId is 126564.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TBXT	NM_001366285.2 link	c.512A>G	p.His171Arg	missense_variant	Exon 3 of 8	ENST00000366876.7	NP_001353214.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TBXT	ENST00000366876.7 link	c.512A>G	p.His171Arg	missense_variant	Exon 3 of 8	1	NM_001366285.2	ENSP00000355841.3	J3KP65
TBXT	ENST00000366871.7 link	c.512A>G	p.His171Arg	missense_variant	Exon 4 of 8	1		ENSP00000355836.3	O15178-2
TBXT	ENST00000296946.6 link	c.512A>G	p.His171Arg	missense_variant	Exon 4 of 9	5		ENSP00000296946.2	O15178-1
TBXT	ENST00000461348.2 link	c.512A>G	p.His171Arg	missense_variant	Exon 4 of 6	5		ENSP00000453512.1	H0YM91

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251494

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112008

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Sacral agenesis-abnormal ossification of the vertebral bodies-persistent notochordal canal syndrome

Pathogenic:1

Feb 01, 2014

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.48

BayesDel_noAF

Pathogenic

0.45

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.90

D;.;.;.

Eigen

Pathogenic

0.79

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.96

D;D;D;D

M_CAP

Pathogenic

0.39

MetaRNN

Pathogenic

0.98

D;D;D;D

MetaSVM

Pathogenic

1.0

PhyloP100

7.5

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-7.9

D;D;D;D

REVEL

Pathogenic

0.98

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0

D;D;.;D

Polyphen

1.0

D;.;.;.

Vest4

0.97

MutPred

0.87

Gain of MoRF binding (P = 0.0078);Gain of MoRF binding (P = 0.0078);Gain of MoRF binding (P = 0.0078);Gain of MoRF binding (P = 0.0078);

MVP

0.98

MPC

2.2

ClinPred

1.0

GERP RS

4.9

Varity_R

0.98

gMVP

0.97

Mutation Taster

=0/100

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over