| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Bispecific, MCLA-158 |
| Cas No. | |
| Clonality | |
| Expression System | |
| Form | Liquid |
| Host | |
| Isotype | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage | |
| Target | |
| UniProt # |
Product Overview
Petosemtamab (HF004186) is a research-grade recombinant antibody targeting HER1. Produced in mammalian cells with native-like glycosylation. Highlights- ●Research Grade — For PK/PD studies, assay development, and ADA research.
- ●Native Glycosylation — Mammalian expression ensures native-like patterns.
Specifications
| Host Species | Human |
|---|---|
| Species Reactivity | Human |
| Clonality | Monoclonal |
| Isotype | IgG1, kappa |
| Target | HER1, Receptor tyrosine-protein kinase erbB-1, Proto-oncogene c-ErbB-1, Epidermal growth factor receptor, EGFR, ERBB1, ERBB, G-protein coupled receptor 49, G-protein coupled receptor HG38, LGR5, GPR67, GPR49, G-protein coupled receptor 67, Leucine-rich repeat-containing G-protein coupled receptor 5 |
| Purification | Protein A/G purified from cell culture supernatant. |
| Purity | >95% purity as determined by SDS-PAGE. |
| Form | Liquid |
| Storage Buffer | 0.01M PBS, pH 7.4. |
| Expression System | Mammalian Cells |
| UniProt | P00533, O75473 |
Validated Applications
| Application |
|---|
| ELISA |
| Flow Cytometry |
| Functional Assay |
| In Vivo Studies |
Scientific Background
Petosemtamab (MCLA 158) is an anti- EGFR (Kd: 0.22 nM) and anti-LGR5 (Kd: 0.86 nM) monoclonal antibody (mAb). Petosemtamab leads to EGFR signaling blockade and receptor degradation in LGR5+ cancer cells. Petosemtamab can be used in the research of solid tumors, such as head and neck squamous cell carcinoma (HNSCC), metastatic colorectal cancer (CRC).
Reactivity
This antibody shows reactivity with Human.
Safety & Handling
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.
