X-53083118-G-T

Variant names:

• chrX-53083118-G-T
• NM_022117.4:c.620G>T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_022117.4(TSPYL2):​c.620G>T​(p.Arg207Ile) 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. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 22)
• Consequence: TSPYL2 NM_022117.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.32

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]

ACMG classification

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=0.07140428).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSPYL2	NM_022117.4	c.620G>T	p.Arg207Ile	missense_variant	Exon 1 of 7	ENST00000375442.8	NP_071400.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSPYL2	ENST00000375442.8	c.620G>T	p.Arg207Ile	missense_variant	Exon 1 of 7	1	NM_022117.4	ENSP00000364591.4
TSPYL2	ENST00000578306.5	n.125G>T		non_coding_transcript_exon_variant	Exon 1 of 6	5		ENSP00000462635.1

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 22

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 23, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.620G>T (p.R207I) 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 620, causing the arginine (R) at amino acid position 207 to be replaced by an isoleucine (I). 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	0.15
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	14
DANN	Benign	0.92
DEOGEN2	Benign	0.41	T
FATHMM_MKL	Benign	0.16	N
LIST_S2	Benign	0.71	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.071	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.69	N
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.016
Sift	Uncertain	0.028	D
Sift4G	Uncertain	0.014	D
Polyphen		0.14	B
Vest4		0.13
MutPred		0.24		Loss of MoRF binding (P = 0.0533);
MVP		0.093
MPC		0.46
ClinPred		0.11	T
GERP RS		-1.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.095
gMVP		0.70

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.

Other links and lift over

hg19: chrX-53112300; COSMIC: COSV105902702; COSMIC: COSV105902702;