6-116278764-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003309.4(TSPYL1):c.1067T>C(p.Ile356Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000444 in 1,614,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00047 ( 0 hom. )

Consequence

TSPYL1
NM_003309.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.72

Variant links:

Genes affected

TSPYL1 (HGNC:12382): (TSPY like 1) The protein encoded by this gene is found in the nucleolus and is similar to that of a family of genes on the Y-chromosome. This gene is intronless. Defects in this gene are a cause of sudden infant death with dysgenesis of the testes syndrome (SIDDT). [provided by RefSeq, Dec 2009]

TSPYL1 links:

DSE (HGNC:21144): (dermatan sulfate epimerase) The protein encoded by this gene is a tumor-rejection antigen. It is localized to the endoplasmic reticulum and functions to convert D-glucuronic acid to L-iduronic acid during the biosynthesis of dermatan sulfate. This antigen possesses tumor epitopes capable of inducing HLA-A24-restricted and tumor-specific cytotoxic T lymphocytes in cancer patients and may be useful for specific immunotherapy. Mutations in this gene cause inmusculocontractural Ehlers-Danlos syndrome. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 9, and a paralogous gene exists on chromosome 18. [provided by RefSeq, Apr 2016]

DSE links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10128102).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TSPYL1	NM_003309.4 linkuse as main transcript	c.1067T>C	p.Ile356Thr	missense_variant	1/1	ENST00000368608.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
TSPYL1	ENST00000368608.4 linkuse as main transcript	c.1067T>C	p.Ile356Thr	missense_variant	1/1		NM_003309.4	P1
DSE	ENST00000430252.6 linkuse as main transcript	c.-54+19797A>G		intron_variant		2
DSE	ENST00000647244.1 linkuse as main transcript	c.-54+19797A>G		intron_variant
TSPYL1	ENST00000652202.1 linkuse as main transcript	c.1067T>C	p.Ile356Thr	missense_variant, NMD_transcript_variant	1/3

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

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:

0.000382

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000235

AC:

AN:

251438

Hom.:

AF XY:

0.000228

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000405

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:

0.000352

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000467

AC:

682

AN:

1461894

Hom.:

Cov.:

AF XY:

0.000444

AC XY:

323

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000554

Gnomad4 OTH exome

AF:

0.000745

GnomAD4 genome

AF:

0.000230

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.000168

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000382

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000872

Hom.:

Bravo

AF:

0.000242

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000157

AC:

EpiCase

AF:

0.000545

EpiControl

AF:

0.000533

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 17, 2021

The c.1067T>C (p.I356T) alteration is located in exon 1 (coding exon 1) of the TSPYL1 gene. This alteration results from a T to C substitution at nucleotide position 1067, causing the isoleucine (I) at amino acid position 356 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Apr 01, 2022

This sequence change replaces isoleucine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 356 of the TSPYL1 protein (p.Ile356Thr). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with TSPYL1-related conditions. This variant is present in population databases (rs144676525, gnomAD 0.04%). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.68

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.47

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.0011

Eigen

Benign

-0.15

Eigen_PC

Benign

-0.20

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.16

M_CAP

Benign

0.0064

MetaRNN

Benign

0.10

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

MutationTaster

Benign

0.95

D;N

PrimateAI

Uncertain

0.66

PROVEAN

Benign

0.38

REVEL

Benign

0.091

Sift

Benign

0.074

Sift4G

Benign

0.24

Polyphen

0.89

Vest4

0.28

MVP

0.21

MPC

0.83

ClinPred

0.071

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.15

gMVP

0.28

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