21-44499800-G-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_144991.3(TSPEAR):​c.1993C>A​(p.Arg665Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000141 in 1,420,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TSPEAR
NM_144991.3 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.99
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 -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP7
Synonymous conserved (PhyloP=2.99 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSPEARNM_144991.3 linkc.1993C>A p.Arg665Arg synonymous_variant Exon 12 of 12 ENST00000323084.9 NP_659428.2 Q8WU66-1
TSPEARNM_001272037.2 linkc.1789C>A p.Arg597Arg synonymous_variant Exon 13 of 13 NP_001258966.1 Q8WU66

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSPEARENST00000323084.9 linkc.1993C>A p.Arg665Arg synonymous_variant Exon 12 of 12 1 NM_144991.3 ENSP00000321987.4 Q8WU66-1
TSPEARENST00000642437.1 linkn.*1938C>A non_coding_transcript_exon_variant Exon 13 of 13 ENSP00000496535.1 A0A2R8YFK6
TSPEARENST00000642437.1 linkn.*1938C>A 3_prime_UTR_variant Exon 13 of 13 ENSP00000496535.1 A0A2R8YFK6

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000110
AC:
2
AN:
182552
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
98474
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000407
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000132
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000141
AC:
2
AN:
1420072
Hom.:
0
Cov.:
31
AF XY:
0.00000142
AC XY:
1
AN XY:
702818
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000124
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000170
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
7.9
DANN
Benign
0.78

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: rs782453883; hg19: chr21-45919683; API