2-202464932-A-G

Position:

• chr2-202464932-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2 PP2 PP3_Strong PP5_Moderate

The NM_001204.7(BMPR2):​c.200A>G​(p.Tyr67Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,858 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: BMPR2 NM_001204.7 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:3 O:1
• Conservation: PhyloP100: 3.41

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 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), BMPR2. . Gene score misZ 2.0624 (greater than the threshold 3.09). Trascript score misZ 3.2701 (greater than threshold 3.09). GenCC has associacion of gene with pulmonary hypertension, primary, 1, congenital heart disease, heritable pulmonary arterial hypertension, pulmonary arterial hypertension.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.982
• PP5: Variant 2-202464932-A-G is Pathogenic according to our data. Variant chr2-202464932-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 425719.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.200A>G	p.Tyr67Cys	missense_variant	2/13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.200A>G	p.Tyr67Cys	missense_variant	2/13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.200A>G	p.Tyr67Cys	missense_variant	2/13	1	NM_001204.7	ENSP00000363708.4
BMPR2	ENST00000374574.2	c.200A>G	p.Tyr67Cys	missense_variant	2/12	2		ENSP00000363702.2
BMPR2	ENST00000479069.1	n.107A>G		non_coding_transcript_exon_variant	1/3	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461858 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727230

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:3 Other:1

Revision: criteria provided, single submitter

Submissions by phenotype

Pulmonary arterial hypertension Pathogenic:1

Pathogenic, no assertion criteria provided

research

NIHR Bioresource Rare Diseases, University of Cambridge

-

- -

Primary pulmonary hypertension Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 06, 2023

This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 67 of the BMPR2 protein (p.Tyr67Cys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with pulmonary arterial hypertension (PMID: 15146475, 16429395, 18356561, 20002458). ClinVar contains an entry for this variant (Variation ID: 425719). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on BMPR2 protein function. Experimental studies have shown that this missense change affects BMPR2 function (PMID: 25187962). For these reasons, this variant has been classified as Pathogenic. -

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
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.50	D
BayesDel_noAF	Pathogenic	0.48
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.98	D;.;.
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Pathogenic	0.98	D;D;D
M_CAP	Pathogenic	0.45	D
MetaRNN	Pathogenic	0.98	D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.2	M;M;.
PrimateAI	Pathogenic	0.80	T
PROVEAN	Pathogenic	-5.9	D;D;.
REVEL	Pathogenic	0.89
Sift	Uncertain	0.0010	D;D;.
Sift4G	Uncertain	0.0060	D;D;.
Polyphen		1.0	D;.;.
Vest4		0.91
MutPred		0.94		Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);.;
MVP		0.98
MPC		1.2
ClinPred		0.99	D
GERP RS		5.4
Varity_R		0.95
gMVP		0.72

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

Publications

LitVar

Other links and lift over

dbSNP: rs1085307177; hg19: chr2-203329655; COSMIC: COSV101001153;