chr2-202555263-A-G

Position:

• chr2-202555263-A-G

Variant summary

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

The NM_001204.7(BMPR2):​c.1598A>G​(p.His533Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,746 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: BMPR2 NM_001204.7 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 6.12

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 in the BMPR2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 94 curated pathogenic missense variants (we use a threshold of 10). The gene has 70 curated benign missense variants. Gene score misZ: 2.0624 (below the threshold of 3.09). Trascript score misZ: 3.2701 (above the threshold of 3.09). GenCC associations: The gene is linked to pulmonary hypertension, primary, 1, congenital heart disease, heritable pulmonary arterial hypertension, pulmonary arterial hypertension.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.1598A>G	p.His533Arg	missense_variant	12/13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.1598A>G	p.His533Arg	missense_variant	12/13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.1598A>G	p.His533Arg	missense_variant	12/13	1	NM_001204.7	ENSP00000363708.4
BMPR2	ENST00000374574.2	c.1586+2375A>G		intron_variant		2		ENSP00000363702.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461746 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727186

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Pulmonary hypertension, primary, 1 Uncertain:1

Uncertain significance, no assertion criteria provided

literature only

Rare Disease Genomics Group, St George's University of London

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.050
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.48	T
Eigen	Benign	0.016
Eigen_PC	Benign	0.21
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.034	D
MetaRNN	Uncertain	0.71	D
MetaSVM	Uncertain	-0.20	T
MutationAssessor	Benign	0.81	L
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.37
Sift	Uncertain	0.021	D
Sift4G	Benign	0.23	T
Polyphen		0.27	B
Vest4		0.77
MutPred		0.25		Gain of MoRF binding (P = 0.0245);
MVP		0.89
MPC		0.40
ClinPred		0.74	D
GERP RS		5.4
Varity_R		0.20
gMVP		0.32

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: rs1085307368; hg19: chr2-203419986;