rs782251764

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_144991.3(TSPEAR):​c.1937C>A​(p.Thr646Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000374 in 1,602,370 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T646M) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TSPEAR
NM_144991.3 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.83
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.040590018).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSPEARNM_144991.3 linkuse as main transcriptc.1937C>A p.Thr646Lys missense_variant 12/12 ENST00000323084.9
TSPEARNM_001272037.2 linkuse as main transcriptc.1733C>A p.Thr578Lys missense_variant 13/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSPEARENST00000323084.9 linkuse as main transcriptc.1937C>A p.Thr646Lys missense_variant 12/121 NM_144991.3 P1Q8WU66-1
TSPEARENST00000642437.1 linkuse as main transcriptc.*1882C>A 3_prime_UTR_variant, NMD_transcript_variant 13/13

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000221
AC:
5
AN:
225868
Hom.:
0
AF XY:
0.00000812
AC XY:
1
AN XY:
123202
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000152
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000345
AC:
5
AN:
1450172
Hom.:
0
Cov.:
31
AF XY:
0.00000139
AC XY:
1
AN XY:
720478
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000115
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000248
AC:
3

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
16
DANN
Benign
0.95
DEOGEN2
Benign
0.029
T;T
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.66
.;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.041
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.2
L;L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.64
.;N
REVEL
Benign
0.10
Sift
Benign
0.87
.;T
Sift4G
Benign
0.79
.;T
Polyphen
0.40
B;B
Vest4
0.11
MutPred
0.46
Gain of ubiquitination at T646 (P = 0.0203);Gain of ubiquitination at T646 (P = 0.0203);
MVP
0.061
MPC
0.060
ClinPred
0.28
T
GERP RS
4.3
Varity_R
0.14
gMVP
0.25

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: rs782251764; hg19: chr21-45919739; API