X-51743672-G-A

Position:

• chrX-51743672-G-A

Variant summary

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

The NM_018094.5(GSPT2):​c.46G>A​(p.Asp16Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0 (0 hom. 0 hem.)
  • Failed GnomAD Quality Control
• Consequence: GSPT2 NM_018094.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.32

Genes affected

GSPT2 (HGNC:4622): (G1 to S phase transition 2) This gene encodes a GTPase that belongs to the GTP-binding elongation factor family. The encoded protein is a polypeptide release factor that complexes with eukaryotic peptide chain release factor 1 to mediate translation termination. This protein may also be involved in mRNA stability.[provided by RefSeq, Mar 2010]

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=0.10603973).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GSPT2	NM_018094.5	c.46G>A	p.Asp16Asn	missense_variant	1/1	ENST00000340438.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GSPT2	ENST00000340438.6	c.46G>A	p.Asp16Asn	missense_variant	1/1		NM_018094.5	P1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD3 exomes AF: 0.0000114 AC: 2 AN: 174801 Hom.: 0 AF XY: 0.0000164 AC XY: 1 AN XY: 61033

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000148

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1092607 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 358953

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 23

Bravo AF: 0.00000756

ExAC AF: 0.0000165 AC: 2

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 27, 2022

The c.46G>A (p.D16N) alteration is located in exon 1 (coding exon 1) of the GSPT2 gene. This alteration results from a G to A substitution at nucleotide position 46, causing the aspartic acid (D) at amino acid position 16 to be replaced by an asparagine (N). 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	0.26
BayesDel_addAF	Benign	-0.58	T
BayesDel_noAF	Benign	-0.82
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.058	T
FATHMM_MKL	Benign	0.75	D
LIST_S2	Uncertain	0.94	D
M_CAP	Uncertain	0.12	D
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.1	M
MutationTaster	Benign	0.98	D
PrimateAI	Pathogenic	0.80	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.093
Sift	Benign	0.14	T
Sift4G	Uncertain	0.025	D
Polyphen		0.38	B
Vest4		0.30
MVP		0.69
MPC		1.1
ClinPred		0.44	T
GERP RS		3.0
Varity_R		0.12
gMVP		0.19

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

Other links and lift over

dbSNP: rs199733827; hg19: chrX-51486768; COSMIC: COSV61213824;