2-202530952-G-T

Variant names:

• chr2-202530952-G-T
• rs1085307301
• NM_001204.7:c.1126G>T

Variant summary

Our verdict is Pathogenic. The variant received 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
• Publications: 2 publications found

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]

BMPR2 Gene-Disease associations (from GenCC):

• pulmonary arterial hypertension

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• pulmonary hypertension, primary, 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
• heritable pulmonary arterial hypertension

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• congenital heart disease

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Pathogenic. The variant received 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.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001204.7. 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
	BMPR2	NM_001204.7	MANE Select	c.1126G>T	p.Glu376*	stop_gained splice_region	Exon 8 of 13	NP_001195.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BMPR2	ENST00000374580.10	TSL:1 MANE Select	c.1126G>T	p.Glu376*	stop_gained splice_region	Exon 8 of 13	ENSP00000363708.4
	BMPR2	ENST00000374574.2	TSL:2	c.1126G>T	p.Glu376*	stop_gained splice_region	Exon 8 of 12	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

Sep 20, 2024

Clingen Pulmonary Hypertension Variant Curation Expert Panel, ClinGen

Significance: Pathogenic

Review Status: reviewed by expert panel

Collection Method: curation

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

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

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

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

Wendy Chung Laboratory, Boston Children's Hospital

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

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
PhyloP100		9.9
Vest4		0.94
GERP RS		5.7
Mutation Taster		=0/200	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1085307301; hg19: chr2-203395675;