chr17-61400522-G-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_005994.4(TBX2):​c.346G>T​(p.Asp116Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000941 in 1,593,584 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D116N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000097 ( 0 hom. )

Consequence

TBX2
NM_005994.4 missense

Scores

10
8
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.79
Variant links:
Genes affected
TBX2 (HGNC:11597): (T-box transcription factor 2) This gene is a member of a phylogenetically conserved family of genes that share a common DNA-binding domain, the T-box. T-box genes encode transcription factors involved in the regulation of developmental processes. This gene product is the human homolog of mouse Tbx2, and shares strong sequence similarity with Drosophila omb protein. Expression studies indicate that this gene may have a potential role in tumorigenesis as an immortalizing agent. Transcript heterogeneity due to alternative polyadenylation has been noted for this gene. [provided by RefSeq, Jul 2008]
TBX2-AS1 (HGNC:50355): (TBX2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.839
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBX2NM_005994.4 linkuse as main transcriptc.346G>T p.Asp116Tyr missense_variant 1/7 ENST00000240328.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBX2ENST00000240328.4 linkuse as main transcriptc.346G>T p.Asp116Tyr missense_variant 1/71 NM_005994.4 P1
TBX2ENST00000419047.5 linkuse as main transcriptc.346G>T p.Asp116Tyr missense_variant, NMD_transcript_variant 1/71
TBX2-AS1ENST00000592009.1 linkuse as main transcriptn.41-6775C>A intron_variant, non_coding_transcript_variant 3
TBX2ENST00000477081.1 linkuse as main transcriptn.158G>T non_coding_transcript_exon_variant 1/52

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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
GnomAD4 exome
AF:
0.00000971
AC:
14
AN:
1441544
Hom.:
0
Cov.:
32
AF XY:
0.00000839
AC XY:
6
AN XY:
714922
show subpopulations
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000118
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.00
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

ClinVar

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

Submissions by phenotype

Vertebral anomalies and variable endocrine and T-cell dysfunction Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingBaylor GeneticsMar 15, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
34
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.89
D
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D
M_CAP
Pathogenic
0.95
D
MetaRNN
Pathogenic
0.84
D
MetaSVM
Uncertain
0.72
D
MutationAssessor
Uncertain
2.5
M
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Pathogenic
-5.2
D
REVEL
Pathogenic
0.83
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0060
D
Polyphen
0.99
D
Vest4
0.50
MutPred
0.41
Loss of disorder (P = 0.0191);
MVP
0.77
ClinPred
1.0
D
GERP RS
2.9
Varity_R
0.91
gMVP
0.74

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs746678515; hg19: chr17-59477883; API