21-44527334-C-T

Variant summary

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

The ENST00000323084.9(TSPEAR):​c.1107G>A​(p.Thr369=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000535 in 1,614,028 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00042 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00055 ( 2 hom. )

Consequence

TSPEAR
ENST00000323084.9 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -1.11
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=-0.51).
BP6
Variant 21-44527334-C-T is Benign according to our data. Variant chr21-44527334-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 504826.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.11 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSPEARNM_144991.3 linkuse as main transcriptc.1107G>A p.Thr369= synonymous_variant 7/12 ENST00000323084.9 NP_659428.2
TSPEARNM_001272037.2 linkuse as main transcriptc.903G>A p.Thr301= synonymous_variant 8/13 NP_001258966.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSPEARENST00000323084.9 linkuse as main transcriptc.1107G>A p.Thr369= synonymous_variant 7/121 NM_144991.3 ENSP00000321987 P1Q8WU66-1
TSPEARENST00000397916.1 linkuse as main transcriptn.1062G>A non_coding_transcript_exon_variant 7/111
TSPEARENST00000642437.1 linkuse as main transcriptc.*1052G>A 3_prime_UTR_variant, NMD_transcript_variant 8/13 ENSP00000496535

Frequencies

GnomAD3 genomes
AF:
0.000421
AC:
64
AN:
152160
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000896
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000362
AC:
91
AN:
251486
Hom.:
0
AF XY:
0.000419
AC XY:
57
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000217
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000703
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000547
AC:
799
AN:
1461868
Hom.:
2
Cov.:
31
AF XY:
0.000536
AC XY:
390
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000302
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000673
Gnomad4 OTH exome
AF:
0.000447
GnomAD4 genome
AF:
0.000421
AC:
64
AN:
152160
Hom.:
0
Cov.:
33
AF XY:
0.000363
AC XY:
27
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000896
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000533
Hom.:
0
Bravo
AF:
0.000408
EpiCase
AF:
0.00109
EpiControl
AF:
0.000948

ClinVar

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

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxFeb 26, 2021- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 03, 2023- -
TSPEAR-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 07, 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). -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMay 13, 2016p.Thr369Thr in exon 7 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 40/66720 of Europ ean chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinst itute.org; dbSNP rs145868820). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
0.65
DANN
Benign
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs145868820; hg19: chr21-45947217; COSMIC: COSV100555313; COSMIC: COSV100555313; API