3-189215364-G-A

Position:

• chr3-189215364-G-A

Variant summary

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

The NM_198485.4(TPRG1):​c.283G>A​(p.Gly95Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,188 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: TPRG1 NM_198485.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.10

Genes affected

TPRG1 (HGNC:24759): (tumor protein p63 regulated 1) Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

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=0.1800456).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TPRG1	NM_198485.4	c.283G>A	p.Gly95Ser	missense_variant	3/6	ENST00000345063.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TPRG1	ENST00000345063.8	c.283G>A	p.Gly95Ser	missense_variant	3/6	1	NM_198485.4	P1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152188 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152188 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74346

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

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

May 22, 2023

The c.283G>A (p.G95S) alteration is located in exon 3 (coding exon 2) of the TPRG1 gene. This alteration results from a G to A substitution at nucleotide position 283, causing the glycine (G) at amino acid position 95 to be replaced by a serine (S). 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	0.11
BayesDel_addAF	Benign	-0.056	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	18
DANN	Uncertain	0.98
DEOGEN2	Benign	0.040	T;T;T;T
Eigen	Benign	0.069
Eigen_PC	Benign	0.15
FATHMM_MKL	Benign	0.63	D
LIST_S2	Benign	0.75	.;T;T;T
M_CAP	Benign	0.0039	T
MetaRNN	Benign	0.18	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.14	N;.;N;.
MutationTaster	Benign	0.96	D;D
PrimateAI	Benign	0.45	T
PROVEAN	Benign	-1.9	N;D;N;D
REVEL	Benign	0.21
Sift	Benign	0.55	T;T;T;T
Sift4G	Benign	0.89	T;T;T;T
Polyphen		0.063	B;.;B;.
Vest4		0.35
MutPred		0.61		Gain of disorder (P = 0.1183);Gain of disorder (P = 0.1183);Gain of disorder (P = 0.1183);Gain of disorder (P = 0.1183);
MVP		0.10
MPC		0.038
ClinPred		0.31	T
GERP RS		3.5
Varity_R		0.083
gMVP		0.61

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs1455458663; hg19: chr3-188933153;