rs768567

chrX-9638108-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005647.4(TBL1X):c.-130-2165T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.349 in 110,490 control chromosomes in the GnomAD database, including 5,174 homozygotes. There are 11,021 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.35 (5174 hom., 11021 hem., cov: 22)
• Consequence: TBL1X NM_005647.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.679

Genes affected

TBL1X (HGNC:11585): (transducin beta like 1 X-linked) 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 encoded protein is found as a subunit in corepressor SMRT (silencing mediator for retinoid and thyroid receptors) complex along with histone deacetylase 3 protein. This gene is located adjacent to the ocular albinism gene and it is thought to be involved in the pathogenesis of the ocular albinism with late-onset sensorineural deafness phenotype. Four transcript variants encoding two different isoforms have been found for this gene. This gene is highly similar to the Y chromosome TBL1Y gene. [provided by RefSeq, Nov 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.39 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TBL1X	NM_005647.4	c.-130-2165T>G		intron_variant		ENST00000645353.2
TBL1X	NM_001139466.1	c.-130-2165T>G		intron_variant
TBL1X	NM_001139467.1	c.-138-2165T>G		intron_variant
TBL1X	NM_001139468.1	c.-138-2165T>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TBL1X	ENST00000645353.2	c.-130-2165T>G		intron_variant			NM_005647.4

Frequencies

GnomAD3 genomes AF: 0.349 AC: 38580 AN: 110436 Hom.: 5173 Cov.: 22 AF XY: 0.336 AC XY: 10996 AN XY: 32686

Gnomad AFR AF: 0.396

Gnomad AMI AF: 0.476

Gnomad AMR AF: 0.264

Gnomad ASJ AF: 0.428

Gnomad EAS AF: 0.0171

Gnomad SAS AF: 0.164

Gnomad FIN AF: 0.377

Gnomad MID AF: 0.266

Gnomad NFE AF: 0.364

Gnomad OTH AF: 0.324

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.349 AC: 38599 AN: 110490 Hom.: 5174 Cov.: 22 AF XY: 0.337 AC XY: 11021 AN XY: 32750

Gnomad4 AFR AF: 0.396

Gnomad4 AMR AF: 0.263

Gnomad4 ASJ AF: 0.428

Gnomad4 EAS AF: 0.0169

Gnomad4 SAS AF: 0.163

Gnomad4 FIN AF: 0.377

Gnomad4 NFE AF: 0.364

Gnomad4 OTH AF: 0.322

Alfa AF: 0.372 Hom.: 2675

Bravo AF: 0.344

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
Cadd	Benign	1.3
Dann	Benign	0.76

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

Other links and lift over

dbSNP: rs768567; hg19: chrX-9606148;