chr2-202555436-C-G

Position:

• chr2-202555436-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_001204.7(BMPR2):​c.1771C>G​(p.Arg591Gly) variant causes a missense 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BMPR2 NM_001204.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.80

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 4 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, 0.838

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.1771C>G	p.Arg591Gly	missense_variant	12/13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.1771C>G	p.Arg591Gly	missense_variant	12/13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.1771C>G	p.Arg591Gly	missense_variant	12/13	1	NM_001204.7	ENSP00000363708	P1
BMPR2	ENST00000374574.2	c.1586+2548C>G		intron_variant		2		ENSP00000363702

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.88
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.17
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.46	T
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.097	D
MetaRNN	Pathogenic	0.84	D
MetaSVM	Uncertain	0.24	D
MutationAssessor	Benign	1.7	L
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-1.6	N
REVEL	Uncertain	0.53
Sift	Uncertain	0.0030	D
Sift4G	Benign	0.12	T
Polyphen		1.0	D
Vest4		0.91
MutPred		0.42		Loss of MoRF binding (P = 0.0466);
MVP		0.91
MPC		1.2
ClinPred		0.92	D
GERP RS		5.7
Varity_R		0.34
gMVP		0.55

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: rs777458559; hg19: chr2-203420159;