rs116701346

Variant summary

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

The NM_001365276.2(TNXB):​c.10368C>T​(p.Thr3456Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000719 in 1,579,948 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0025 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00053 ( 5 hom. )

Consequence

TNXB
NM_001365276.2 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -3.07
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 6-32046413-G-A is Benign according to our data. Variant chr6-32046413-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 261095.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.07 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.00053 (757/1427610) while in subpopulation AFR AF= 0.00915 (302/33002). AF 95% confidence interval is 0.0083. There are 5 homozygotes in gnomad4_exome. There are 364 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 3 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TNXBNM_001365276.2 linkc.10368C>T p.Thr3456Thr synonymous_variant Exon 31 of 44 ENST00000644971.2 NP_001352205.1
TNXBNM_001428335.1 linkc.11109C>T p.Thr3703Thr synonymous_variant Exon 32 of 45 NP_001415264.1
TNXBNM_019105.8 linkc.10362C>T p.Thr3454Thr synonymous_variant Exon 31 of 44 NP_061978.6 P22105-1O95680Q9Y464O95681

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TNXBENST00000644971.2 linkc.10368C>T p.Thr3456Thr synonymous_variant Exon 31 of 44 NM_001365276.2 ENSP00000496448.1 P22105-3
TNXBENST00000490077.5 linkn.195C>T non_coding_transcript_exon_variant Exon 1 of 14 1
TNXBENST00000647633.1 linkc.11109C>T p.Thr3703Thr synonymous_variant Exon 32 of 45 ENSP00000497649.1 A0A3B3ISX9
TNXBENST00000375244.7 linkc.10368C>T p.Thr3456Thr synonymous_variant Exon 31 of 44 5 ENSP00000364393.3 P22105-3

Frequencies

GnomAD3 genomes
AF:
0.00247
AC:
376
AN:
152220
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00743
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000785
Gnomad ASJ
AF:
0.000865
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00226
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000397
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000808
AC:
195
AN:
241284
Hom.:
0
AF XY:
0.000636
AC XY:
84
AN XY:
132174
show subpopulations
Gnomad AFR exome
AF:
0.00591
Gnomad AMR exome
AF:
0.000527
Gnomad ASJ exome
AF:
0.000921
Gnomad EAS exome
AF:
0.000168
Gnomad SAS exome
AF:
0.0000331
Gnomad FIN exome
AF:
0.00150
Gnomad NFE exome
AF:
0.000408
Gnomad OTH exome
AF:
0.000676
GnomAD4 exome
AF:
0.000530
AC:
757
AN:
1427610
Hom.:
5
Cov.:
31
AF XY:
0.000517
AC XY:
364
AN XY:
703546
show subpopulations
Gnomad4 AFR exome
AF:
0.00915
Gnomad4 AMR exome
AF:
0.000543
Gnomad4 ASJ exome
AF:
0.00116
Gnomad4 EAS exome
AF:
0.000180
Gnomad4 SAS exome
AF:
0.0000834
Gnomad4 FIN exome
AF:
0.00209
Gnomad4 NFE exome
AF:
0.000200
Gnomad4 OTH exome
AF:
0.000967
GnomAD4 genome
AF:
0.00249
AC:
379
AN:
152338
Hom.:
3
Cov.:
32
AF XY:
0.00239
AC XY:
178
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.00748
Gnomad4 AMR
AF:
0.000784
Gnomad4 ASJ
AF:
0.000865
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00226
Gnomad4 NFE
AF:
0.000397
Gnomad4 OTH
AF:
0.000948
Alfa
AF:
0.00146
Hom.:
0
Bravo
AF:
0.00210
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.000437
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Jan 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

TNXB: BP4, BP7, BS2 -

Jan 30, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ehlers-Danlos syndrome Benign:1
Sep 24, 2020
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1
Jan 17, 2020
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely 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
-0.77
CADD
Benign
0.18
DANN
Benign
0.65

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: rs116701346; hg19: chr6-32014190; API