chr6-43622692-G-A

Variant names:

• chr6-43622692-G-A
• rs1007812513
• NM_019096.5:c.1408C>T

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_019096.5(GTPBP2):​c.1408C>T​(p.Arg470*) variant causes a stop gained 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 Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: GTPBP2 NM_019096.5 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 4.66
• Publications: 0 publications found

Genes affected

GTPBP2 (HGNC:4670): (GTP binding protein 2) GTP-binding proteins, or G proteins, constitute a superfamily capable of binding GTP or GDP. G proteins are activated by binding GTP and are inactivated by hydrolyzing GTP to GDP. This general mechanism enables G proteins to perform a wide range of biologic activities.[supplied by OMIM, Jan 2003]

GTPBP2 Gene-Disease associations (from GenCC):

• Jaberi-Elahi syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 6-43622692-G-A is Pathogenic according to our data. Variant chr6-43622692-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 544689.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_019096.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GTPBP2	NM_019096.5	MANE Select	c.1408C>T	p.Arg470*	stop_gained	Exon 10 of 12	NP_061969.3
	GTPBP2	NM_001286216.2		c.1144C>T	p.Arg382*	stop_gained	Exon 10 of 12	NP_001273145.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GTPBP2	ENST00000307126.10	TSL:1 MANE Select	c.1408C>T	p.Arg470*	stop_gained	Exon 10 of 12	ENSP00000303997.5
	GTPBP2	ENST00000307114.11	TSL:2	c.1144C>T	p.Arg382*	stop_gained	Exon 10 of 12	ENSP00000304893.7
	GTPBP2	ENST00000432918.5	TSL:3	c.112C>T	p.Arg38*	stop_gained	Exon 1 of 2	ENSP00000398905.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Jaberi-Elahi syndrome Pathogenic:1

Sep 13, 2022

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.52	D
BayesDel_noAF	Pathogenic	0.51
CADD	Pathogenic	42
DANN	Uncertain	1.0
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.71
FATHMM_MKL	Pathogenic	0.97	D
PhyloP100		4.7
Vest4		0.50
ClinPred		1.0	D
GERP RS		4.5
PromoterAI		0.027	Neutral
Mutation Taster		=6/194	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1007812513; hg19: chr6-43590429; COSMIC: COSV100200223; COSMIC: COSV100200223;