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GeneBe

6-166162494-C-T

Variant summary

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

The NM_001366285.2(TBXT):c.860G>A(p.Arg287Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000167 in 1,614,098 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R287W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

TBXT
NM_001366285.2 missense

Scores

5
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.27
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBXTNM_001366285.2 linkuse as main transcriptc.860G>A p.Arg287Gln missense_variant 6/8 ENST00000366876.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBXTENST00000366876.7 linkuse as main transcriptc.860G>A p.Arg287Gln missense_variant 6/81 NM_001366285.2 P4
TBXTENST00000366871.7 linkuse as main transcriptc.731-1528G>A intron_variant 1 O15178-2
TBXTENST00000296946.6 linkuse as main transcriptc.857G>A p.Arg286Gln missense_variant 7/95 A1O15178-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152092
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251438
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.0000193
AC XY:
14
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000135
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 10, 2022The c.857G>A (p.R286Q) alteration is located in exon 7 (coding exon 6) of the T gene. This alteration results from a G to A substitution at nucleotide position 857, causing the arginine (R) at amino acid position 286 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Benign
-0.040
T
BayesDel_noAF
Uncertain
-0.060
Cadd
Pathogenic
29
Dann
Pathogenic
1.0
DEOGEN2
Uncertain
0.72
D;.
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Uncertain
0.48
T;T
MetaSVM
Uncertain
0.56
D
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Uncertain
0.51
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.035
D;.
Polyphen
1.0
D;.
Vest4
0.60
MutPred
0.22
Loss of catalytic residue at R286 (P = 0.0419);.;
MVP
0.94
MPC
0.71
ClinPred
0.99
D
GERP RS
4.3
Varity_R
0.52
gMVP
0.70

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs527987217; hg19: chr6-166575982; COSMIC: COSV105114869; COSMIC: COSV105114869; API