Is BMPR2 p.Asn666Ser (c.1997A>G) pathogenic?

BMPR2 p.Asn666Ser (c.1997A>G) is classified Uncertain significance in BMPR2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-11-25). AlphaMissense: likely benign (0.0916); Very rare (popmax 0.004%, afr); Associated with Inborn genetic diseases.

What condition is associated with BMPR2 p.Asn666Ser (c.1997A>G)?

BMPR2 p.Asn666Ser (c.1997A>G) is associated with Inborn genetic diseases (ClinVar).

How common is BMPR2 p.Asn666Ser (c.1997A>G) in the general population?

BMPR2 p.Asn666Ser (c.1997A>G) is very rare (popmax 0.004%, afr) (gnomAD).

What do computational predictors say about BMPR2 p.Asn666Ser (c.1997A>G)?

AlphaMissense predicts likely benign (score 0.0916) — an in-silico prediction, not a clinical call.

BMPR2 p.Asn666Ser

c.1997A>G · VCV3481297

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0916 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.004%, afr)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0916	likely benign
REVEL	0.333	indeterminate
SaProt	LLR -5.58	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.3	GERP 2.4, phastCons 1
Regional constraint	o/e 0.92	unconstrained · MANE · 6,896 bp · p 0.061 · regional, not allelic
Overall
CADD	20.6	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.004% African / African-American · 3/74,928 alleles

Filtering AF 0.00106% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000495%

Overall 0.000372% 6/1,613,998 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.004%	24,976
South Asian	0.0022%	45,544
European (non-Finnish)	8.47e-05%	1,180,038

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.Asn666Ser
Coding: c.1997A>G
MANE Select: NM_001204
Type: single nucleotide variant
Location: chr2:202555662 (GRCh38)
Gene constraint: LOEUF 0.376 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 58.07 · 7 PDB
Residue 666: 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

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

BMPR2 p.Asn666Asp Uncertain significance ★ same residue
BMPR2 p.Ala35Val Uncertain significance ★★ ⚠ same condition
BMPR2 p.Arg114His Uncertain significance ★★ ⚠ same condition
BMPR2 p.Arg357Lys Uncertain significance ★★ ⚠ same condition
BMPR2 p.Arg857Trp Uncertain significance ★★ ⚠ same condition
BMPR2 p.Asn588Ser Uncertain significance ★★ ⚠ same condition
BMPR2 p.Asp682Glu Uncertain significance ★★ ⚠ same condition
BMPR2 p.Gln834Arg Uncertain significance ★★ ⚠ 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-asn666ser (accessed [today's date]).

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