Genetic Variant TSPEAR:p.Ser654Pro (chr21-44499833-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_144991.3(TSPEAR):c.1960T>C(p.Ser654Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000278 in 1,440,290 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

TSPEAR
NM_144991.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.57

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSPEAR	NM_144991.3 link	c.1960T>C	p.Ser654Pro	missense_variant	Exon 12 of 12	ENST00000323084.9	NP_659428.2	Q8WU66-1
TSPEAR	NM_001272037.2 link	c.1756T>C	p.Ser586Pro	missense_variant	Exon 13 of 13		NP_001258966.1	Q8WU66

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TSPEAR	ENST00000323084.9 link	c.1960T>C	p.Ser654Pro	missense_variant	Exon 12 of 12	1	NM_144991.3	ENSP00000321987.4	Q8WU66-1
TSPEAR	ENST00000642437.1 link	n.*1905T>C		non_coding_transcript_exon_variant	Exon 13 of 13			ENSP00000496535.1	A0A2R8YFK6
TSPEAR	ENST00000642437.1 link	n.*1905T>C		3_prime_UTR_variant	Exon 13 of 13			ENSP00000496535.1	A0A2R8YFK6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000948

AC:

AN:

211078

Hom.:

AF XY:

0.00000872

AC XY:

AN XY:

114614

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000217

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000278

AC:

AN:

1440290

Hom.:

Cov.:

AF XY:

0.00000420

AC XY:

AN XY:

714626

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000363

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000333

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000830

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Oct 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1960T>C (p.S654P) alteration is located in exon 12 (coding exon 12) of the TSPEAR gene. This alteration results from a T to C substitution at nucleotide position 1960, causing the serine (S) at amino acid position 654 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Uncertain

0.072

BayesDel_noAF

Benign

-0.13

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.20

T;T

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.85

.;T

M_CAP

Benign

0.081

MetaRNN

Uncertain

0.70

D;D

MetaSVM

Benign

-0.77

MutationAssessor

Uncertain

2.4

M;M

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.9

.;N

REVEL

Uncertain

0.31

Sift

Benign

0.035

.;D

Sift4G

Uncertain

0.010

.;D

Polyphen

1.0

D;D

Vest4

0.73

MutPred

0.55

Gain of sheet (P = 0.0043);Gain of sheet (P = 0.0043);

MVP

0.22

MPC

0.34

ClinPred

0.91

GERP RS

4.3

Varity_R

0.62

gMVP

0.90

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over