rs1553810255

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP2PP3_ModeratePP5

The NM_024665.7(TBL1XR1):​c.974G>A​(p.Cys325Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TBL1XR1
NM_024665.7 missense

Scores

14
4
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3U:1

Conservation

PhyloP100: 7.87
Variant links:
Genes affected
TBL1XR1 (HGNC:29529): (TBL1X/Y related 1) This gene is a member of the WD40 repeat-containing gene family and shares sequence similarity with transducin (beta)-like 1X-linked (TBL1X). The protein encoded by this gene is thought to be a component of both nuclear receptor corepressor (N-CoR) and histone deacetylase 3 (HDAC 3) complexes, and is required for transcriptional activation by a variety of transcription factors. Mutations in these gene have been associated with some autism spectrum disorders, and one finding suggests that haploinsufficiency of this gene may be a cause of intellectual disability with dysmorphism. Mutations in this gene as well as recurrent translocations involving this gene have also been observed in some tumors. [provided by RefSeq, Mar 2016]
TBL1XR1-AS1 (HGNC:41243): (TBL1XR1 antisense RNA 1)

Genome browser will be placed here

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;
PP2
Missense variant in the TBL1XR1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 50 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 4.2042 (above the threshold of 3.09). Trascript score misZ: 5.2877 (above the threshold of 3.09). GenCC associations: The gene is linked to Pierpont syndrome, complex neurodevelopmental disorder, intellectual disability, autosomal dominant 41.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.928
PP5
Variant 3-177038386-C-T is Pathogenic according to our data. Variant chr3-177038386-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 545441.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=1, Pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TBL1XR1NM_024665.7 linkc.974G>A p.Cys325Tyr missense_variant Exon 11 of 16 ENST00000457928.7 NP_078941.2 Q9BZK7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TBL1XR1ENST00000457928.7 linkc.974G>A p.Cys325Tyr missense_variant Exon 11 of 16 1 NM_024665.7 ENSP00000413251.3 Q9BZK7

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1427338
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
706500
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:3Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Intellectual disability, autosomal dominant 41 Pathogenic:1Uncertain:1
Dec 08, 2016
Equipe Genetique des Anomalies du Developpement, Université de Bourgogne
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 05, 2020
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Pierpont syndrome Pathogenic:1
May 13, 2019
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

not provided Pathogenic:1
Dec 01, 2023
GeneDx
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 37683765, 31298310, 30365874, 36691917, 36843287, 33527360, 32449767, 32034290) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.44
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.60
D;D
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.93
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
.;D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Uncertain
0.69
D
MutationAssessor
Pathogenic
3.0
M;M
PrimateAI
Pathogenic
0.93
D
PROVEAN
Pathogenic
-9.4
D;D
REVEL
Pathogenic
0.91
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;D
Vest4
0.87
MutPred
0.77
Gain of sheet (P = 0.1539);Gain of sheet (P = 0.1539);
MVP
0.95
MPC
3.0
ClinPred
1.0
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.97
gMVP
0.96

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: rs1553810255; hg19: chr3-176756174; COSMIC: COSV70501007; COSMIC: COSV70501007; API