rs140923114

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_144991.3(TSPEAR):​c.411G>A​(p.Thr137=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000172 in 1,612,532 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00018 ( 4 hom. )

Consequence

TSPEAR
NM_144991.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.401
Variant links:
Genes affected
TSPEAR (HGNC:1268): (thrombospondin type laminin G domain and EAR repeats) This gene encodes a protein that contains a N-terminal thrombospondin-type laminin G domain and several tandem arranged epilepsy-associated repeats (EARs). A mutation in this gene is the cause of autosomal recessive deafness-98. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Dec 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.72).
BP6
Variant 21-44533816-C-T is Benign according to our data. Variant chr21-44533816-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 504829.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.401 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSPEARNM_144991.3 linkuse as main transcriptc.411G>A p.Thr137= synonymous_variant 3/12 ENST00000323084.9
TSPEARNM_001272037.2 linkuse as main transcriptc.207G>A p.Thr69= synonymous_variant 4/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSPEARENST00000323084.9 linkuse as main transcriptc.411G>A p.Thr137= synonymous_variant 3/121 NM_144991.3 P1Q8WU66-1
TSPEARENST00000397916.1 linkuse as main transcriptn.366G>A non_coding_transcript_exon_variant 3/111
TSPEARENST00000642437.1 linkuse as main transcriptc.*356G>A 3_prime_UTR_variant, NMD_transcript_variant 4/13

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152114
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000315
AC:
78
AN:
247528
Hom.:
3
AF XY:
0.000430
AC XY:
58
AN XY:
134900
show subpopulations
Gnomad AFR exome
AF:
0.000126
Gnomad AMR exome
AF:
0.000261
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000110
Gnomad SAS exome
AF:
0.00137
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000198
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000179
AC:
261
AN:
1460300
Hom.:
4
Cov.:
33
AF XY:
0.000252
AC XY:
183
AN XY:
726454
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.000246
Gnomad4 ASJ exome
AF:
0.0000766
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00176
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000540
Gnomad4 OTH exome
AF:
0.000282
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152232
Hom.:
0
Cov.:
30
AF XY:
0.000108
AC XY:
8
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000195
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000987
Hom.:
0
Bravo
AF:
0.000144
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 25, 2018- -
Likely benign, criteria provided, single submitterclinical testingInvitaeNov 05, 2023- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJun 09, 2016p.Thr137Thr in exon 3 of TSPEAR: This variant is not expected to have clinical s ignificance because it does not alter an amino acid residue and is not located w ithin the splice consensus sequence. It has been identified in 0.2% (26/16428) S outh Asian chromosomes including 3 homozygotes by the Exome Aggregation Consorti um (ExAC, http://exac.broadinstitute.org; dbSNP rs140923114). -
TSPEAR-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJun 10, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
5.2
DANN
Benign
0.77

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: rs140923114; hg19: chr21-45953699; COSMIC: COSV59965817; API