21-44533670-C-T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_144991.3(TSPEAR):​c.542+15G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,592,484 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

TSPEAR
NM_144991.3 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3O:1

Conservation

PhyloP100: -0.0600

Publications

0 publications found
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]
TSPEAR Gene-Disease associations (from GenCC):
  • ectodermal dysplasia 14, hair/tooth type with or without hypohidrosis
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive nonsyndromic hearing loss 98
    Inheritance: AR Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 21-44533670-C-T is Benign according to our data. Variant chr21-44533670-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 228054.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSPEARNM_144991.3 linkc.542+15G>A intron_variant Intron 3 of 11 ENST00000323084.9 NP_659428.2
TSPEARNM_001272037.2 linkc.338+15G>A intron_variant Intron 4 of 12 NP_001258966.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSPEARENST00000323084.9 linkc.542+15G>A intron_variant Intron 3 of 11 1 NM_144991.3 ENSP00000321987.4
TSPEARENST00000397916.1 linkn.497+15G>A intron_variant Intron 3 of 10 1
TSPEARENST00000642437.1 linkn.*487+15G>A intron_variant Intron 4 of 12 ENSP00000496535.1

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152208
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00193
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000157
AC:
37
AN:
235472
AF XY:
0.000131
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000881
Gnomad ASJ exome
AF:
0.000104
Gnomad EAS exome
AF:
0.00111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000572
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000135
AC:
195
AN:
1440158
Hom.:
0
Cov.:
31
AF XY:
0.000139
AC XY:
99
AN XY:
714614
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33124
American (AMR)
AF:
0.0000451
AC:
2
AN:
44328
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25860
East Asian (EAS)
AF:
0.00117
AC:
46
AN:
39316
South Asian (SAS)
AF:
0.000245
AC:
21
AN:
85556
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48938
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5246
European-Non Finnish (NFE)
AF:
0.000107
AC:
118
AN:
1098340
Other (OTH)
AF:
0.000135
AC:
8
AN:
59450
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
10
21
31
42
52
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152326
Hom.:
0
Cov.:
30
AF XY:
0.000107
AC XY:
8
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41578
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00194
AC:
10
AN:
5166
South Asian (SAS)
AF:
0.000621
AC:
3
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.521
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000130
Hom.:
0
Bravo
AF:
0.000162
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2Other:1
Oct 21, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Apr 11, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

GenomeConnect, ClinGen
Significance:not provided
Review Status:no classification provided
Collection Method:phenotyping only

GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant.

not specified Benign:1
Sep 30, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

c.542+15G>A in intron 3 of TSPEAR: This variant is not expected to have clinical significance because it is not located within the splice consensus sequence, an d it is not predicted to impact splicing. It has it has been identified in 0.12 % (9/7686) of East Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org, dbSNP rs587599565).

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
1.7
DANN
Benign
0.40
PhyloP100
-0.060
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs587599565; hg19: chr21-45953553; API