BAMBI
BMP and activin membrane-bound inhibitor homolog
Also known as: BAMBI_HUMAN, NMA
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q13145
- Gene
- BAMBI
- Ensembl
- ENSG00000095739
- Chromosome
- 10
- Canonical length
- 260 aa
- Protein class
- Plasma proteins, Predicted membrane proteins
- Subcellular location
- Nucleoli fibrillar center,Vesicles,Lipid droplets
OverviewNCBI Gene
This gene encodes a transmembrane glycoprotein related to the type I receptors of the transforming growth factor-beta (TGF-beta) family, whose members play important roles in signal transduction in many developmental and pathological processes. The encoded protein however is a pseudoreceptor, lacking an intracellular serine/threonine kinase domain required for signaling. Similar proteins in frog, mouse and zebrafish function as negative regulators of TGF-beta, which has led to the suggestion that the encoded protein may function to limit the signaling range of the TGF-beta family during early embryogenesis. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
260 residues, UniProt reviewed canonical sequence.
>Q13145|BAMBI
1 MDRHSSYIFI WLQLELCAMA VLLTKGEIRC YCDAAHCVAT GYMCKSELSA CFSRLLDPQN
61 SNSPLTHGCL DSLASTTDIC QAKQARNHSG TTIPTLECCH EDMCNYRGLH DVLSPPRGEA
121 SGQGNRYQHD GSRNLITKVQ ELTSSKELWF RAAVIAVPIA GGLILVLLIM LALRMLRSEN
181 KRLQDQRQQM LSRLHYSFHG HHSKKGQVAK LDLECMVPVS GHENCCLTCD KMRQADLSND
241 KILSLVHWGM YSGHGKLEFVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against BAMBI can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.54
- Highest tissue expression
- 59 nTPM
Expression across tissuesHPA
Tissue
- ovary: 59 nTPM
- heart muscle: 47 nTPM
- adrenal gland: 42 nTPM
- choroid plexus: 38 nTPM
- placenta: 37 nTPM
- urinary bladder: 32 nTPM
Single-cell type
- breast hormone-responsive cells: 291 nCPM
- breast secretory cells: 185 nCPM
- epididymal efferent duct absorptive cells: 108 nCPM
- breast myoepithelial cells: 107 nCPM
- platelets: 101 nCPM
- müller glia: 96 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- white matter: 30 nTPM
- pons: 28 nTPM
- choroid plexus: 27 nTPM
- medulla oblongata: 26 nTPM
- cerebellum: 22 nTPM
- midbrain: 19 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.24
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.1
- DepMap mean gene effect
- -0.07
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cell migration
- negative regulation of BMP signaling pathway
- negative regulation of osteoblast differentiation
- negative regulation of transforming growth factor beta receptor signaling pathway
- positive regulation of canonical Wnt signaling pathway
- positive regulation of cell population proliferation
- positive regulation of DNA-templated transcription
- positive regulation of epithelial to mesenchymal transition
- regulation of cell shape
- transforming growth factor beta receptor signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Snake toxin-like superfamily
- BMP and activin membrane-bound inhibitor
- BMP and activin membrane-bound inhibitor, C-terminal domain
- BMP and activin membrane-bound inhibitor, N-terminal domain
- BMP and activin membrane-bound inhibitor (BAMBI) N-terminal domain
- BMP and activin membrane-bound inhibitor homolog C-terminus
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads BAMBI as an antibody target. Whether an autoantibody or antibody against BAMBI could matter depends on whether native BAMBI is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
BAMBI is annotated at the cell surface, where native BAMBI is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label BAMBI as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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