rs374694591

chr2-202518997-G-Achr2-202518997-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_001204.7(BMPR2):c.797G>A(p.Arg266Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R266T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BMPR2 NM_001204.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.92

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 Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, BMPR2

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BMPR2	NM_001204.7	c.797G>A	p.Arg266Lys	missense_variant	6/13	ENST00000374580.10
BMPR2	XM_011511687.2	c.797G>A	p.Arg266Lys	missense_variant	6/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BMPR2	ENST00000374580.10	c.797G>A	p.Arg266Lys	missense_variant	6/13	1	NM_001204.7	P1
BMPR2	ENST00000374574.2	c.797G>A	p.Arg266Lys	missense_variant	6/12	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.040
Cadd	Pathogenic	28
Dann	Uncertain	1.0
DEOGEN2	Benign	0.42	T;.;.
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.84	T;T;T
M_CAP	Benign	0.022	T
MetaRNN	Uncertain	0.70	D;D;D
MetaSVM	Benign	-0.77	T
MutationAssessor	Benign	1.3	L;L;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-2.2	N;N;.
REVEL	Uncertain	0.34
Sift	Benign	0.15	T;D;.
Sift4G	Benign	0.13	T;T;.
Polyphen		0.84	P;.;.
Vest4		0.73
MutPred		0.51		Gain of ubiquitination at R266 (P = 0.0219);Gain of ubiquitination at R266 (P = 0.0219);.;
MVP		0.77
MPC		0.39
ClinPred		0.84	D
GERP RS		5.7
Varity_R		0.64
gMVP		0.76

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: rs374694591; hg19: chr2-203383720;