Genetic Variant TSPYL2:p.Cys94Phe (chrX-53082779-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_022117.4(TSPYL2):c.281G>T(p.Cys94Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/20 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. C94R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 9.2e-7 ( 0 hom. 1 hem. )

Failed GnomAD Quality Control

Consequence

TSPYL2
NM_022117.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.57

Variant links:

Genes affected

TSPYL2 (HGNC:24358): (TSPY like 2) This gene encodes a member of the testis-specific protein Y-encoded, TSPY-like/SET/nucleosome assembly protein-1 superfamily. The encoded protein is localized to the nucleolus where it functions in chromatin remodeling and as an inhibitor of cell-cycle progression. This protein may play a role in the suppression of tumor growth. [provided by RefSeq, Sep 2009]

TSPYL2 links:

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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=0.17030752).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSPYL2	NM_022117.4 link	c.281G>T	p.Cys94Phe	missense_variant	Exon 1 of 7	ENST00000375442.8	NP_071400.1	Q9H2G4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TSPYL2	ENST00000375442.8 link	c.281G>T	p.Cys94Phe	missense_variant	Exon 1 of 7	1	NM_022117.4	ENSP00000364591.4	Q9H2G4
TSPYL2	ENST00000579390.1 link	c.168+113G>T		intron_variant	Intron 1 of 2	5		ENSP00000462287.1	J3KS33
TSPYL2	ENST00000553557.5 link	n.413G>T		non_coding_transcript_exon_variant	Exon 1 of 4	2
TSPYL2	ENST00000578306.5 link	n.-215G>T		upstream_gene_variant		5		ENSP00000462635.1	J3KST2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

9.23e-7

AC:

AN:

1083056

Hom.:

Cov.:

AF XY:

0.00000283

AC XY:

AN XY:

353216

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:

0.00000120

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 07, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.281G>T (p.C94F) alteration is located in exon 1 (coding exon 1) of the TSPYL2 gene. This alteration results from a G to T substitution at nucleotide position 281, causing the cysteine (C) at amino acid position 94 to be replaced by a phenylalanine (F). 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

Benign

0.099

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.32

FATHMM_MKL

Benign

0.29

LIST_S2

Benign

0.68

M_CAP

Benign

0.016

MetaRNN

Benign

0.17

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.0

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-1.5

REVEL

Benign

0.037

Sift

Uncertain

0.023

Sift4G

Uncertain

0.039

Polyphen

0.88

Vest4

0.29

MutPred

0.19

Loss of loop (P = 0.1242);

MVP

0.093

MPC

0.67

ClinPred

0.27

GERP RS

3.4

Varity_R

0.38

gMVP

0.11

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over