2-202530952-G-T

Position:

• chr2-202530952-G-T

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2 PVS1 PS4_Supporting

This summary comes from the ClinGen Evidence Repository: BMPR2 c.1126G>T (p.Glu376Ter) variant is predicted to cause premature stop at residue 376, in exon 8, and lead to nonsense mediated decay. The variant is absent from gnomAD v2.1.1 and v4.1 (PM2_supporting met) and was identified in two unrelated idiopathic PAH probands (PMID:26387786 and PMID:31727138) (PS4_supporting met). In summary, the variant meets the criteria to be classified as pathogenic for pulmonary arterial hypertension based on the ACMG/AMP criteria applied, as specified by the ClinGen Pulmonary Hypertension VCEP: PVS1, PM2_supporting, PS4_supporting (VCEP specification version 1.1, 1/18/2024). LINK:https://erepo.genome.network/evrepo/ui/classification/CA350341605/MONDO:0015924/125

• Frequency: Genomes: not found (cov: 32)
• Consequence: BMPR2 NM_001204.7 stop_gained, splice_region
• Scores: Splicing: ADA: 0.9883
• Clinical Significance: Pathogenic reviewed by expert panel P:2 O:1
• Conservation: PhyloP100: 9.93

Genes affected

BMPR2 (HGNC:1078): (bone morphogenetic protein receptor type 2) This gene encodes a member of the bone morphogenetic protein (BMP) receptor family of transmembrane serine/threonine kinases. The ligands of this receptor are members of the TGF-beta superfamily. BMPs are involved in endochondral bone formation and embryogenesis. These proteins transduce their signals through the formation of heteromeric complexes of two different types of serine (threonine) kinase receptors: type I receptors of about 50-55 kD and type II receptors of about 70-80 kD. Mutations in this gene have been associated with primary pulmonary hypertension, both familial and fenfluramine-associated, and with pulmonary venoocclusive disease. [provided by RefSeq, May 2020]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PVS1: For more information check the summary or visit ClinGen Evidence Repository.
• PS4: For more information check the summary or visit ClinGen Evidence Repository.
• PM2: For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.1126G>T	p.Glu376*	stop_gained, splice_region_variant	8/13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.1126G>T	p.Glu376*	stop_gained, splice_region_variant	8/13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.1126G>T	p.Glu376*	stop_gained, splice_region_variant	8/13	1	NM_001204.7	ENSP00000363708.4
BMPR2	ENST00000374574.2	c.1126G>T	p.Glu376*	stop_gained, splice_region_variant	8/12	2		ENSP00000363702.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2 Other:1

Revision: reviewed by expert panel

Submissions by phenotype

Pulmonary arterial hypertension Pathogenic:1

Pathogenic, reviewed by expert panel

curation

Clingen Pulmonary Hypertension Variant Curation Expert Panel, ClinGen

Sep 20, 2024

BMPR2 c.1126G>T (p.Glu376Ter) variant is predicted to cause premature stop at residue 376, in exon 8, and lead to nonsense mediated decay. The variant is absent from gnomAD v2.1.1 and v4.1 (PM2_supporting met) and was identified in two unrelated idiopathic PAH probands (PMID: 26387786 and PMID: 31727138) (PS4_supporting met). In summary, the variant meets the criteria to be classified as pathogenic for pulmonary arterial hypertension based on the ACMG/AMP criteria applied, as specified by the ClinGen Pulmonary Hypertension VCEP: PVS1, PM2_supporting, PS4_supporting (VCEP specification version 1.1, 1/18/2024). -

Pulmonary hypertension, primary, 1 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

Rare Disease Genomics Group, St George's University of London

-

- -

Pulmonary arterial hypertension;C5679820:Idiopathic and/or familial pulmonary arterial hypertension Other:1

not provided, no classification provided

literature only

Wendy Chung Laboratory, Columbia University Medical Center

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.66
CADD	Pathogenic	45
DANN	Uncertain	1.0
Eigen	Pathogenic	1.2
Eigen_PC	Pathogenic	1.1
FATHMM_MKL	Pathogenic	0.99	D
Vest4		0.94
GERP RS		5.7

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	0.99
dbscSNV1_RF	Pathogenic	0.87
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: rs1085307301; hg19: chr2-203395675;