17-47733588-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_013351.2(TBX21):​c.134C>A​(p.Ala45Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000404 in 1,459,560 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

TBX21
NM_013351.2 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.51
Variant links:
Genes affected
TBX21 (HGNC:11599): (T-box transcription factor 21) 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 is the human ortholog of mouse Tbx21/Tbet gene. Studies in mouse show that Tbx21 protein is a Th1 cell-specific transcription factor that controls the expression of the hallmark Th1 cytokine, interferon-gamma (IFNG). Expression of the human ortholog also correlates with IFNG expression in Th1 and natural killer cells, suggesting a role for this gene in initiating Th1 lineage development from naive Th precursor cells. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09993294).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBX21NM_013351.2 linkc.134C>A p.Ala45Glu missense_variant 1/6 ENST00000177694.2 NP_037483.1 Q9UL17

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBX21ENST00000177694.2 linkc.134C>A p.Ala45Glu missense_variant 1/61 NM_013351.2 ENSP00000177694.1 Q9UL17
TBX21ENST00000581328.1 linkn.164C>A non_coding_transcript_exon_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152026
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000865
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000113
AC:
7
AN:
61712
Hom.:
0
AF XY:
0.0000551
AC XY:
2
AN XY:
36276
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000906
Gnomad ASJ exome
AF:
0.000770
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000405
AC:
53
AN:
1307534
Hom.:
0
Cov.:
31
AF XY:
0.0000450
AC XY:
29
AN XY:
644218
show subpopulations
Gnomad4 AFR exome
AF:
0.0000382
Gnomad4 AMR exome
AF:
0.0000450
Gnomad4 ASJ exome
AF:
0.000631
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000143
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000239
Gnomad4 OTH exome
AF:
0.000185
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
152026
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74254
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000865
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000869
ExAC
AF:
0.0000945
AC:
3

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 GeneticsApr 25, 2022The c.134C>A (p.A45E) alteration is located in exon 1 (coding exon 1) of the TBX21 gene. This alteration results from a C to A substitution at nucleotide position 134, causing the alanine (A) at amino acid position 45 to be replaced by a glutamic acid (E). 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
0.14
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
16
DANN
Benign
0.96
DEOGEN2
Benign
0.28
T
Eigen
Benign
-0.74
Eigen_PC
Benign
-0.66
FATHMM_MKL
Benign
0.62
D
LIST_S2
Benign
0.45
T
M_CAP
Pathogenic
0.91
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.81
T
MutationAssessor
Benign
0.55
N
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
-0.47
N
REVEL
Benign
0.15
Sift
Benign
0.044
D
Sift4G
Benign
0.83
T
Polyphen
0.048
B
Vest4
0.19
MutPred
0.20
Gain of solvent accessibility (P = 0.0411);
MVP
0.43
MPC
1.9
ClinPred
0.058
T
GERP RS
3.6
Varity_R
0.098
gMVP
0.53

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: rs746017796; hg19: chr17-45810954; API