6-32089365-G-A

Position:

chr6-32089365-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001365276.2(TNXB):c.2373C>T(p.Ser791Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00248 in 1,606,748 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0056 ( 7 hom., cov: 32)

Exomes 𝑓: 0.0022 ( 11 hom. )

Consequence

TNXB
NM_001365276.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.737

Variant links:

Genes affected

TNXB (HGNC:11976): (tenascin XB) This gene encodes a member of the tenascin family of extracellular matrix glycoproteins. The tenascins have anti-adhesive effects, as opposed to fibronectin which is adhesive. This protein is thought to function in matrix maturation during wound healing, and its deficiency has been associated with the connective tissue disorder Ehlers-Danlos syndrome. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. It is one of four genes in this cluster which have been duplicated. The duplicated copy of this gene is incomplete and is a pseudogene which is transcribed but does not encode a protein. The structure of this gene is unusual in that it overlaps the CREBL1 and CYP21A2 genes at its 5' and 3' ends, respectively. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

TNXB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.5).

BP6

Variant 6-32089365-G-A is Benign according to our data. Variant chr6-32089365-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 261130.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-32089365-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=0.737 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00561 (855/152346) while in subpopulation AFR AF= 0.0161 (670/41584). AF 95% confidence interval is 0.0151. There are 7 homozygotes in gnomad4. There are 388 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 7 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TNXB	NM_001365276.2 linkuse as main transcript	c.2373C>T	p.Ser791Ser	synonymous_variant	5/44	ENST00000644971.2	NP_001352205.1
TNXB	NM_019105.8 linkuse as main transcript	c.2373C>T	p.Ser791Ser	synonymous_variant	5/44		NP_061978.6	P22105-1O95680Q9Y464O95681

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TNXB	ENST00000644971.2 linkuse as main transcript	c.2373C>T	p.Ser791Ser	synonymous_variant	5/44		NM_001365276.2	ENSP00000496448.1	P22105-3
TNXB	ENST00000647633.1 linkuse as main transcript	c.2373C>T	p.Ser791Ser	synonymous_variant	5/45			ENSP00000497649.1	A0A3B3ISX9
TNXB	ENST00000375244.7 linkuse as main transcript	c.2373C>T	p.Ser791Ser	synonymous_variant	5/44	5		ENSP00000364393.3	P22105-3

Frequencies

GnomAD3 genomes

AF:

0.00558

AC:

850

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0160

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00386

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00168

Gnomad OTH

AF:

0.00430

GnomAD3 exomes

AF:

0.00214

AC:

523

AN:

244204

Hom.:

AF XY:

0.00189

AC XY:

251

AN XY:

132556

show subpopulations

Gnomad AFR exome

AF:

0.0172

Gnomad AMR exome

AF:

0.00197

Gnomad ASJ exome

AF:

0.000201

Gnomad EAS exome

AF:

0.0000563

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000239

Gnomad NFE exome

AF:

0.00166

Gnomad OTH exome

AF:

0.00135

GnomAD4 exome

AF:

0.00216

AC:

3136

AN:

1454402

Hom.:

Cov.:

AF XY:

0.00209

AC XY:

1509

AN XY:

722980

show subpopulations

Gnomad4 AFR exome

AF:

0.0138

Gnomad4 AMR exome

AF:

0.00241

Gnomad4 ASJ exome

AF:

0.000154

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000236

Gnomad4 FIN exome

AF:

0.000315

Gnomad4 NFE exome

AF:

0.00217

Gnomad4 OTH exome

AF:

0.00216

GnomAD4 genome

AF:

0.00561

AC:

855

AN:

152346

Hom.:

Cov.:

AF XY:

0.00521

AC XY:

388

AN XY:

74498

show subpopulations

Gnomad4 AFR

AF:

0.0161

Gnomad4 AMR

AF:

0.00385

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.00168

Gnomad4 OTH

AF:

0.00425

Alfa

AF:

0.00241

Hom.:

Bravo

AF:

0.00644

Asia WGS

AF:

0.00289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Ehlers-Danlos syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Jan 25, 2021

- -

Ehlers-Danlos syndrome due to tenascin-X deficiency;C4014831:Vesicoureteral reflux 8

Benign:1

Benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Jul 07, 2021

- -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Oct 06, 2021

- -

Cardiovascular phenotype

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 05, 2019

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.50

CADD

Benign

7.2

DANN

Benign

0.70

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over