rs1553808295

Positions:

• chr3-177033046-A-C

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM1 PM2 PP2 PP3_Strong PP5_Moderate

The NM_024665.7(TBL1XR1):​c.1341T>G​(p.Ser447Arg) variant causes a missense change involving the alteration of a non-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 Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TBL1XR1 NM_024665.7 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 1.87

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 (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PM1: In a repeat WD 7 (size 39) in uniprot entity TBL1R_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_024665.7
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TBL1XR1. . Gene score misZ 4.2042 (greater than the threshold 3.09). Trascript score misZ 5.2877 (greater than threshold 3.09). GenCC has associacion of gene with Pierpont syndrome, complex neurodevelopmental disorder, intellectual disability, autosomal dominant 41.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.949
• PP5: Variant 3-177033046-A-C is Pathogenic according to our data. Variant chr3-177033046-A-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 521890.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TBL1XR1	NM_024665.7	c.1341T>G	p.Ser447Arg	missense_variant	14/16	ENST00000457928.7	NP_078941.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TBL1XR1	ENST00000457928.7	c.1341T>G	p.Ser447Arg	missense_variant	14/16	1	NM_024665.7	ENSP00000413251.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 18, 2017

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.30	D
BayesDel_noAF	Pathogenic	0.20
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.34	T;T
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.33
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.91	.;D
M_CAP	Benign	0.068	D
MetaRNN	Pathogenic	0.95	D;D
MetaSVM	Benign	-0.50	T
MutationAssessor	Benign	1.6	L;L
PrimateAI	Pathogenic	0.88	D
PROVEAN	Uncertain	-4.3	D;D
REVEL	Uncertain	0.61
Sift	Uncertain	0.0010	D;D
Sift4G	Uncertain	0.0020	D;D
Polyphen		0.98	D;D
Vest4		0.97
MutPred		0.88		Loss of disorder (P = 0.1315);Loss of disorder (P = 0.1315);
MVP		0.96
MPC		2.4
ClinPred		0.99	D
GERP RS		3.1
Varity_R		0.97
gMVP		0.84

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: rs1553808295; hg19: chr3-176750834; COSMIC: COSV70504755; COSMIC: COSV70504755;