rs1085307179

Variant names:

• chr2-202464933-T-G
• rs1085307179
• NM_001204.7:c.201T>G

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001204.7(BMPR2):​c.201T>G​(p.Tyr67*) 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 (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BMPR2 NM_001204.7 stop_gained
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 0.287

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 12 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 2-202464933-T-G is Pathogenic according to our data. Variant chr2-202464933-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 425721.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.201T>G	p.Tyr67*	stop_gained	Exon 2 of 13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.201T>G	p.Tyr67*	stop_gained	Exon 2 of 13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.201T>G	p.Tyr67*	stop_gained	Exon 2 of 13	1	NM_001204.7	ENSP00000363708.4
BMPR2	ENST00000374574.2	c.201T>G	p.Tyr67*	stop_gained	Exon 2 of 12	2		ENSP00000363702.2
BMPR2	ENST00000479069.1	n.108T>G		non_coding_transcript_exon_variant	Exon 1 of 3	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Primary pulmonary hypertension Pathogenic:1

Apr 10, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

For these reasons, this variant has been classified as Pathogenic. Loss-of-function variants in BMPR2 are known to be pathogenic (PMID: 16429395). This variant has been observed in individuals affected with pulmonary arterial hypertension (PMID: 18503968 , 19555857). ClinVar contains an entry for this variant (Variation ID: 425721). This variant is not present in population databases (ExAC no frequency). This sequence change creates a premature translational stop signal (p.Tyr67*) in the BMPR2 gene. It is expected to result in an absent or disrupted protein product. -

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	0.58
CADD	Pathogenic	33
DANN	Uncertain	1.0
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.93	D
Vest4		0.93
GERP RS		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.29		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.29		Position offset: 46

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1085307179; hg19: chr2-203329656;