22-19766452-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_001379200.1(TBX1):​c.1100C>T​(p.Pro367Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000045 in 1,333,286 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign 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. P367A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TBX1
NM_001379200.1 missense

Scores

2
2
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.12
Variant links:
Genes affected
TBX1 (HGNC:11592): (T-box transcription factor 1) 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 shares 98% amino acid sequence identity with the mouse ortholog. DiGeorge syndrome (DGS)/velocardiofacial syndrome (VCFS), a common congenital disorder characterized by neural-crest-related developmental defects, has been associated with deletions of chromosome 22q11.2, where this gene has been mapped. Studies using mouse models of DiGeorge syndrome suggest a major role for this gene in the molecular etiology of DGS/VCFS. Several alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.32854253).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBX1NM_001379200.1 linkuse as main transcriptc.1100C>T p.Pro367Leu missense_variant 7/7 ENST00000649276.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBX1ENST00000649276.2 linkuse as main transcriptc.1100C>T p.Pro367Leu missense_variant 7/7 NM_001379200.1 A2
TBX1ENST00000332710.8 linkuse as main transcriptc.1073C>T p.Pro358Leu missense_variant 9/91 P2O43435-3
TBX1ENST00000329705.11 linkuse as main transcriptc.1009+450C>T intron_variant 1 A2O43435-1
TBX1ENST00000359500.7 linkuse as main transcriptc.1009+450C>T intron_variant 1 A2O43435-2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151250
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000484
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000338
AC:
4
AN:
1182036
Hom.:
0
Cov.:
21
AF XY:
0.00000345
AC XY:
2
AN XY:
579114
show subpopulations
Gnomad4 AFR exome
AF:
0.0000849
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:
0.00000206
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151250
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
73858
show subpopulations
Gnomad4 AFR
AF:
0.0000484
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:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 13, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.061
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
23
DANN
Uncertain
0.99
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.75
D
LIST_S2
Benign
0.50
T;T
M_CAP
Pathogenic
0.97
D
MetaRNN
Benign
0.33
T;T
MetaSVM
Benign
-0.58
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.92
D
PROVEAN
Benign
-1.5
N;.
REVEL
Benign
0.22
Sift
Uncertain
0.0020
D;.
Sift4G
Benign
0.37
T;.
Vest4
0.26
MutPred
0.26
Loss of relative solvent accessibility (P = 0.0186);.;
MVP
0.21
MPC
0.75
ClinPred
0.92
D
GERP RS
2.2
gMVP
0.38

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

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

Other links and lift over

dbSNP: rs1381767156; hg19: chr22-19753975; API