16-1974096-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_006453.3(TBL3):​c.82G>A​(p.Gly28Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000977 in 1,432,860 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 (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000098 ( 0 hom. )

Consequence

TBL3
NM_006453.3 missense

Scores

9
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.39
Variant links:
Genes affected
TBL3 (HGNC:11587): (transducin beta like 3) The protein encoded by this gene has sequence similarity with members of the WD40 repeat-containing protein family. The WD40 group is a large family of proteins, which appear to have a regulatory function. It is believed that the WD40 repeats mediate protein-protein interactions and members of the family are involved in signal transduction, RNA processing, gene regulation, vesicular trafficking, cytoskeletal assembly and may play a role in the control of cytotypic differentiation. This gene has multiple polyadenylation sites. It might have multiple alternatively spliced transcript variants but the variants have not been fully described yet. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.955

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBL3NM_006453.3 linkc.82G>A p.Gly28Arg missense_variant 2/22 ENST00000568546.6 NP_006444.2 Q12788

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBL3ENST00000568546.6 linkc.82G>A p.Gly28Arg missense_variant 2/221 NM_006453.3 ENSP00000454836.1 Q12788
TBL3ENST00000561907.5 linkn.82G>A non_coding_transcript_exon_variant 2/62 ENSP00000454735.1 H3BN88
TBL3ENST00000569628.5 linkn.161G>A non_coding_transcript_exon_variant 2/212

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000210
AC:
5
AN:
238426
Hom.:
0
AF XY:
0.0000232
AC XY:
3
AN XY:
129268
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 SAS exome
AF:
0.000104
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000185
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000977
AC:
14
AN:
1432860
Hom.:
0
Cov.:
31
AF XY:
0.00000988
AC XY:
7
AN XY:
708408
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:
0.0000712
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000641
Gnomad4 OTH exome
AF:
0.0000169
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
ExAC
AF:
0.0000330
AC:
4

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 GeneticsOct 24, 2024The c.82G>A (p.G28R) alteration is located in exon 2 (coding exon 2) of the TBL3 gene. This alteration results from a G to A substitution at nucleotide position 82, causing the glycine (G) at amino acid position 28 to be replaced by an arginine (R). 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
Pathogenic
0.69
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.26
T
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.14
D
MetaRNN
Pathogenic
0.95
D
MetaSVM
Uncertain
0.11
D
MutationAssessor
Uncertain
2.8
M
PrimateAI
Uncertain
0.60
T
PROVEAN
Pathogenic
-7.0
D
Sift
Benign
0.047
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.93
MutPred
0.81
Loss of ubiquitination at K26 (P = 0.0328);
MVP
0.94
MPC
0.65
ClinPred
0.95
D
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.50
gMVP
0.86

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: rs777970940; hg19: chr16-2024097; API