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GeneBe

7-73570951-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_012453.4(TBL2):​c.900T>A​(p.Asp300Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000623 in 1,604,832 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: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

TBL2
NM_012453.4 missense

Scores

9
5
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.432
Variant links:
Genes affected
TBL2 (HGNC:11586): (transducin beta like 2) This gene encodes a member of the beta-transducin protein family. Most proteins of the beta-transducin family are involved in regulatory functions. This protein is possibly involved in some intracellular signaling pathway. This gene is deleted in Williams-Beuren syndrome, a developmental disorder caused by deletion of multiple genes at 7q11.23. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.909

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBL2NM_012453.4 linkuse as main transcriptc.900T>A p.Asp300Glu missense_variant 7/7 ENST00000305632.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBL2ENST00000305632.11 linkuse as main transcriptc.900T>A p.Asp300Glu missense_variant 7/71 NM_012453.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000478
GnomAD3 exomes
AF:
0.00000410
AC:
1
AN:
244076
Hom.:
0
AF XY:
0.00000757
AC XY:
1
AN XY:
132142
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000297
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000413
AC:
6
AN:
1452516
Hom.:
0
Cov.:
32
AF XY:
0.00000554
AC XY:
4
AN XY:
721416
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000457
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:
9.04e-7
Gnomad4 OTH exome
AF:
0.0000501
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152316
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000196
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:
0.000473
Alfa
AF:
0.0000236
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000165
AC:
2

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 GeneticsSep 16, 2021The c.900T>A (p.D300E) alteration is located in exon 7 (coding exon 7) of the TBL2 gene. This alteration results from a T to A substitution at nucleotide position 900, causing the aspartic acid (D) at amino acid position 300 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
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.35
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
T;T;T
Eigen
Benign
-0.19
Eigen_PC
Benign
-0.47
FATHMM_MKL
Benign
0.51
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Pathogenic
0.33
D
MetaRNN
Pathogenic
0.91
D;D;D
MetaSVM
Uncertain
0.61
D
MutationAssessor
Pathogenic
3.0
M;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-3.7
D;.;D
REVEL
Pathogenic
0.70
Sift
Pathogenic
0.0
D;.;D
Sift4G
Uncertain
0.014
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.88
MutPred
0.84
Gain of catalytic residue at D300 (P = 0.0586);Gain of catalytic residue at D300 (P = 0.0586);.;
MVP
0.89
MPC
0.78
ClinPred
0.99
D
GERP RS
-6.2
Varity_R
0.80
gMVP
0.73

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: rs200952341; hg19: chr7-72985281; API