6-32092090-A-G

Variant names:

• chr6-32092090-A-G
• rs1150753
• NM_001365276.2:c.2359-2711T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001365276.2(TNXB):​c.2359-2711T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0622 in 152,234 control chromosomes in the GnomAD database, including 467 homozygotes. 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 0.062 (467 hom., cov: 32)
• Consequence: TNXB NM_001365276.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0470
• Publications: 56 publications found

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 Gene-Disease associations (from GenCC):

• Ehlers-Danlos syndrome

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• Ehlers-Danlos syndrome due to tenascin-X deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Illumina, PanelApp Australia, Orphanet
• familial vesicoureteral reflux

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• vesicoureteral reflux 8

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.104 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001365276.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TNXB	NM_001365276.2	MANE Select	c.2359-2711T>C		intron	N/A	NP_001352205.1
	TNXB	NM_001428335.1		c.2359-2711T>C		intron	N/A	NP_001415264.1
	TNXB	NM_019105.8		c.2359-2711T>C		intron	N/A	NP_061978.6

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TNXB	ENST00000644971.2	MANE Select	c.2359-2711T>C		intron	N/A	ENSP00000496448.1
	TNXB	ENST00000647633.1		c.2359-2711T>C		intron	N/A	ENSP00000497649.1
	TNXB	ENST00000375244.7	TSL:5	c.2359-2711T>C		intron	N/A	ENSP00000364393.3

Frequencies

GnomAD3 genomes AF: 0.0622 AC: 9466 AN: 152116 Hom.: 467 Cov.: 32

Gnomad AFR AF: 0.0154

Gnomad AMI AF: 0.0713

Gnomad AMR AF: 0.0296

Gnomad ASJ AF: 0.0386

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0800

Gnomad MID AF: 0.0190

Gnomad NFE AF: 0.106

Gnomad OTH AF: 0.0468

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

GnomAD4 genome AF: 0.0622 AC: 9463 AN: 152234 Hom.: 467 Cov.: 32 AF XY: 0.0578 AC XY: 4304 AN XY: 74432

African (AFR) AF: 0.0153 AC: 637 AN: 41554

American (AMR) AF: 0.0295 AC: 451 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.0386 AC: 134 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5172

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.0800 AC: 849 AN: 10606

Middle Eastern (MID) AF: 0.0204 AC: 6 AN: 294

European-Non Finnish (NFE) AF: 0.106 AC: 7223 AN: 67996

Other (OTH) AF: 0.0464 AC: 98 AN: 2114

Alfa AF: 0.0914 Hom.: 1915

Bravo AF: 0.0568

Asia WGS AF: 0.00433 AC: 16 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	4.4
DANN	Benign	0.69
PhyloP100		0.047
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs1150753; hg19: chr6-32059867;