BAMBI
Chr 10BMP and activin membrane bound inhibitor
Also known as: NMA
The protein negatively regulates TGF-beta signaling by functioning as a pseudoreceptor that lacks the intracellular kinase domain required for signal transduction. Mutations cause autosomal recessive microcephaly, seizures, and developmental delay with onset in early infancy. This gene is loss-of-function tolerant, which is consistent with its recessive inheritance pattern.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Highly tolerant — LoF variants common in population
Tolerant to missense variation
The highest-scoring mechanism for this gene is dominant-negative.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
63 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 14 | 0 | 14 |
Likely Pathogenic | 0 | 0 | 1 | 0 | 1 |
VUS | 0 | 38 | 1 | 0 | 39 |
Likely Benign | 0 | 1 | 0 | 1 | 2 |
Benign | 0 | 0 | 1 | 1 | 2 |
| Total | 0 | 39 | 17 | 2 | 58 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
BAMBI · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools