rs782299333

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 4P and 4B. PM1PM2BP4_Strong

The NM_144991.3(TSPEAR):​c.1925C>T​(p.Ala642Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000311 in 1,605,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A642G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

TSPEAR
NM_144991.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.91

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: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive nonsyndromic hearing loss 98
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • 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: Uncertain_significance. The variant received 0 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_144991.3
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06108308).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_144991.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TSPEAR
NM_144991.3
MANE Select
c.1925C>Tp.Ala642Val
missense
Exon 12 of 12NP_659428.2
TSPEAR
NM_001272037.2
c.1721C>Tp.Ala574Val
missense
Exon 13 of 13NP_001258966.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TSPEAR
ENST00000323084.9
TSL:1 MANE Select
c.1925C>Tp.Ala642Val
missense
Exon 12 of 12ENSP00000321987.4Q8WU66-1
TSPEAR
ENST00000943283.1
c.2051C>Tp.Ala684Val
missense
Exon 13 of 13ENSP00000613342.1
TSPEAR
ENST00000642437.1
n.*1870C>T
non_coding_transcript_exon
Exon 13 of 13ENSP00000496535.1A0A2R8YFK6

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152250
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000653
AC:
15
AN:
229746
AF XY:
0.0000716
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00158
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000323
AC:
47
AN:
1452958
Hom.:
0
Cov.:
31
AF XY:
0.0000360
AC XY:
26
AN XY:
722188
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33154
American (AMR)
AF:
0.00
AC:
0
AN:
44014
Ashkenazi Jewish (ASJ)
AF:
0.00135
AC:
35
AN:
25860
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84722
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51580
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5598
European-Non Finnish (NFE)
AF:
0.00000541
AC:
6
AN:
1108860
Other (OTH)
AF:
0.000100
AC:
6
AN:
59986
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152250
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74382
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41472
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.000576
AC:
2
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000180
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000414
AC:
5

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
22
DANN
Uncertain
0.97
DEOGEN2
Benign
0.044
T
Eigen
Benign
0.083
Eigen_PC
Benign
0.11
FATHMM_MKL
Benign
0.42
N
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.061
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.1
M
PhyloP100
1.9
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-0.50
N
REVEL
Benign
0.077
Sift
Benign
0.20
T
Sift4G
Benign
0.40
T
Polyphen
0.72
P
Vest4
0.27
MutPred
0.44
Gain of sheet (P = 0.0827)
MVP
0.095
MPC
0.054
ClinPred
0.12
T
GERP RS
4.3
Varity_R
0.11
gMVP
0.37
Mutation Taster
=86/14
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: rs782299333; hg19: chr21-45919751; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.