Is BMPR2 p.Ser689Cys (c.2066C>G) pathogenic?

BMPR2 p.Ser689Cys (c.2066C>G) is classified Uncertain significance in BMPR2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-02-24). AlphaMissense: likely pathogenic (0.8114); Very rare (popmax 0.000678%, nfe); Associated with pulmonary hypertension, primary, 1.

What condition is associated with BMPR2 p.Ser689Cys (c.2066C>G)?

BMPR2 p.Ser689Cys (c.2066C>G) is associated with pulmonary hypertension, primary, 1, pulmonary venoocclusive disease 1 (ClinVar).

How common is BMPR2 p.Ser689Cys (c.2066C>G) in the general population?

BMPR2 p.Ser689Cys (c.2066C>G) is very rare (popmax 0.000678%, nfe) (gnomAD).

What do computational predictors say about BMPR2 p.Ser689Cys (c.2066C>G)?

AlphaMissense predicts likely pathogenic (score 0.8114) — an in-silico prediction, not a clinical call.

BMPR2 p.Ser689Cys

c.2066C>G · VCV3585297

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely pathogenic

0.8114 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000678%, nfe)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

pulmonary hypertension, primary, 1

Computational evidence

Protein change
AlphaMissense	0.8114	likely pathogenic
REVEL	0.531	indeterminate
SaProt	LLR -7.93	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2.4, phastCons 1
Regional constraint	o/e 0.92	unconstrained · MANE · 6,896 bp · p 0.061 · regional, not allelic
Overall
CADD	27.2	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000678% European (non-Finnish) · 8/1,180,038 alleles

Filtering AF 0.000292% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000211%

Overall 0.000547% 8/1,461,858 alleles · very rare

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: BMPR2
Protein: p.Ser689Cys
Coding: c.2066C>G
MANE Select: NM_001204
Type: single nucleotide variant
Location: chr2:202555731 (GRCh38)
Gene constraint: LOEUF 0.376 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 58.07 · 7 PDB
Residue 689: a UniProt-annotated variant site (in pph1; changed localization to the plasma membrane); a UniProt-annotated variant site (in pph1; loss of localization to the plasma membrane; localized to the cytoplasm)

Full BMPR2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

pulmonary hypertension, primary, 1 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: pulmonary venoocclusive disease 1

Similar variants

BMPR2 p.Ser689Pro Uncertain significance ★ ⚠ 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-ser689cys (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown