| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | Transmembrane Protein 119, Osteoblast induction factor, OBIF |
| Clonality | |
| Conjugate | |
| Host | |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
| Storage | |
| Target |
Overview
Anti-TMEM119 (extracellular) Antibody is an antibody targeting Transmembrane Protein 119, Osteoblast induction factor, OBIF Polyclonal raised in Rabbit (Unconjugated). This antibody is commonly used in IFC, WB to detect, localize, or compare expression of the target across samples.
Key elements and design rationale
- Target: Transmembrane Protein 119, Osteoblast induction factor, OBIF (also reported as Transmembrane Protein 119, Osteoblast induction factor, OBIF).
- Immunogen/epitope region: Extracellular, N-terminus..
- Homology note: Rat - 12/15 amino acid residues identical (informative for cross-species interpretation).
- Species reactivity (as provided): Rat, Mouse.
- Specificity statement (as provided): This antibody will not recognize human TMEM119..
- Lot quality control (as provided): Western blot analysis.
- Peptide confirmation: Confirmed by amino acid analysis and mass spectrometry.
- Blocking peptide: Available for antigen preadsorption control where appropriate.
These attributes help researchers interpret whether signal reflects the intended target in a given assay and sample context.
Biological background
Transmembrane protein 119, Tmem119, is a bone formation related factor that belongs to a group of bone morphogenetic proteins (BMPs). It is a class IA single pass transmembrane protein1.Tmem119 promotes the differentiation of myoblasts (embryonic precursors of muscle cells) into osteoblasts and plays a role in numerous BMP signaling pathways1,2.Tmem119 is uniquely expressed in microglia cells and it is therefore used as a microglia-specific homeostatic marker that can assist in differentiating microglia cells from peripherally derived macrophages in the brain3. This marker is very important for diagnosing CNS disease: monocytes/macrophages are key cellular modulators of brain homeostasis.
Research relevance and current trends
- Comparing target expression across perturbations, genotypes, or treatment conditions.
- Interpreting localization shifts alongside pathway or phenotypic readouts.
- Using orthogonal controls (KO/KD, peptide competition, isotype concepts) to support conclusions.
Common research applications
- Western blot (WB): compare target abundance/size across lysates and conditions; consider isoforms/PTMs.
- Immunofluorescence/ICC: assess subcellular localization and co-localization with markers in cells or sections.
- Flow cytometry (direct/indirect): quantify target-positive populations and shifts in expression across subsets.
Interpretation typically benefits from comparing matched sample sets (e.g., treated vs control, WT vs KO/KD) and using orthogonal readouts where feasible.
Notes for experimental interpretation
- Isoforms and post-translational modifications can shift apparent molecular weight or epitope accessibility across samples.
- Cross-species signal may depend on epitope conservation; consult the provided homology note when selecting models.
- Permeabilization, fixation, and antigen retrieval can change accessibility of intracellular vs extracellular epitopes.
- Conceptual control: antigen preadsorption (blocking peptide) can help assess signal dependence on the immunogen region.
- Provided control suggestions: Negative control: BLP-NR175.
- Application notes: see product-specific dilution/usage notes and control concepts provided in the dataset.
Application abbreviations: CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot. Species abbreviations: H- Human, M- Mouse, R- Rat.
Recommended controls: Blocking peptide: BLP-NR175; Negative control: BLP-NR175.
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
