chr7-73570975-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_012453.4(TBL2):​c.879-3C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000656 in 1,592,812 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00069 ( 2 hom. )

Consequence

TBL2
NM_012453.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.001760
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.51
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 7-73570975-G-A is Benign according to our data. Variant chr7-73570975-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3025915.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBL2NM_012453.4 linkuse as main transcriptc.879-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000305632.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBL2ENST00000305632.11 linkuse as main transcriptc.879-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_012453.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000355
AC:
54
AN:
152256
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000676
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000210
AC:
49
AN:
232904
Hom.:
0
AF XY:
0.000223
AC XY:
28
AN XY:
125570
show subpopulations
Gnomad AFR exome
AF:
0.000125
Gnomad AMR exome
AF:
0.0000305
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:
0.000428
Gnomad OTH exome
AF:
0.000178
GnomAD4 exome
AF:
0.000689
AC:
992
AN:
1440438
Hom.:
2
Cov.:
32
AF XY:
0.000641
AC XY:
458
AN XY:
714022
show subpopulations
Gnomad4 AFR exome
AF:
0.000213
Gnomad4 AMR exome
AF:
0.0000233
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:
0.000820
Gnomad4 OTH exome
AF:
0.00138
GnomAD4 genome
AF:
0.000348
AC:
53
AN:
152374
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000661
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000450
Hom.:
0
Bravo
AF:
0.000363
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenDec 01, 2023TBL2: BP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
8.7
DANN
Benign
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0018
dbscSNV1_RF
Benign
0.052
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: rs199828921; hg19: chr7-72985305; API