BMPR2 p.Ser73Ter
c.218C>G · rs137852742 · VCV8797
ClinGen expert panel — Pulmonary Hypertension VCEP
Pathogenic for pulmonary arterial hypertension. Applied ACMG criteria (verbatim):
PVS1 PM2_Supporting PS4_Supporting
Curation rationale (ClinGen, verbatim)
The c.218C>G, (p.Ser73Ter) (NM_001204.7) variant in BMPR2 is a nonsense variant predicted to cause a premature stop codon in biologically-relevant-exon 2 leading to nonsense mediated decay in a gene in which loss-of-function is an established disease mechanism (PVS1; PMID: 16429395). This variant has been reported in 2 pulmonary arterial hypertension probands (PS4_Supporting) (PMID: 26387786 ; PMID: 32581362). This variant is absent from gnomAD v2.1.1 controls (PM2_Supporting). In summary, this variant meets the criteria to be classified as pathogenic for pulmonary arterial hypertension based on the ACMG/AMP criteria applied, as specified by the ClinGen Pulmonary Hypertension VCEP (specification version 11, 1/18/2024): PVS1, PS4_Supporting, PM2_Supporting.
ClinGen Evidence Repository → · reported verbatim, not re-tallied by Sugi Variant.
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Consequence | nonsense (stop-gain) | predicted loss-of-function in a haploinsufficient gene (ClinGen) |
|---|---|---|
| NMD | predicted | premature termination codon in exon 2 of 13 |
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Pangolin | Δ0.24 | loss · gain 0.02 · not in the SpliceAI release · independent |
| Constraint at this position | ||
| Conservation | phyloP 7.7 | GERP 2.7, phastCons 1 |
| Overall | ||
| CADD | 37.0 | PHRED · no single calibrated threshold — expert panels disagree |
Predicted loss-of-function is descriptive, not an applied PVS1 code.
Population frequency
Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.
Variant & gene context
- Gene
- BMPR2
- Protein
- p.Ser73Ter
- Coding
- c.218C>G
- MANE Select
- NM_001204
- dbSNP
- rs137852742
- Type
- single nucleotide variant
- Location
- chr2:202464950 (GRCh38)
- Gene constraint
- LOEUF 0.376 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 58.07 · 7 PDB
- Residue 73
- a disulfide bond; a β-strand
Disease context
pulmonary arterial hypertension — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatmentsAlso linked: pulmonary hypertension, primary, 1
For Idiopathic/heritable pulmonary arterial hypertension (Orphanet):
- Inheritance
- Autosomal dominant, Autosomal recessive, Not applicable
- Onset
- All ages
- Prevalence
- 1-9 / 1 000 000 (United States)
Similar variants
- BMPR2 p.Ser73= Likely benign ★ same residue
- BMPR2 c.1276+3A>G Likely pathogenic ★★★ same condition
- BMPR2 c.1276+3A>T Likely pathogenic ★★★ same condition
- BMPR2 c.1276+4A>G Likely pathogenic ★★★ same condition
- BMPR2 c.1277-8A>G Pathogenic ★★★ same condition
- BMPR2 c.1277-9A>G Pathogenic ★★★ same condition
- BMPR2 c.1413+1G>A Pathogenic ★★★ same condition
- BMPR2 c.247+1G>A Likely pathogenic ★★★ same condition
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/bmpr2-p-ser73ter (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown