chr2-202555294-T-G

Variant names:

• chr2-202555294-T-G
• rs759990771
• NM_001204.7:c.1629T>G

Variant summary

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

The NM_001204.7(BMPR2):​c.1629T>G​(p.Tyr543*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. Y543Y) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BMPR2 NM_001204.7 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 0.609
• 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: 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 2-202555294-T-G is Pathogenic according to our data. Variant chr2-202555294-T-G is described in ClinVar as Pathogenic. ClinVar VariationId is 425963.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.1629T>G	p.Tyr543*	stop_gained	Exon 12 of 13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.1629T>G	p.Tyr543*	stop_gained	Exon 12 of 13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.1629T>G	p.Tyr543*	stop_gained	Exon 12 of 13	1	NM_001204.7	ENSP00000363708.4
BMPR2	ENST00000374574.2	c.1586+2406T>G		intron_variant	Intron 11 of 11	2		ENSP00000363702.2

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

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

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.52
CADD	Pathogenic	35
DANN	Uncertain	1.0
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.38
FATHMM_MKL	Uncertain	0.93	D
PhyloP100		0.61
Vest4		0.98
GERP RS		2.8
Mutation Taster		=1/199	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs759990771; hg19: chr2-203420017;