| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Zona pellucida sperm-binding protein 2;Zona pellucida glycoprotein 2;Zp-2;Zona pellucida protein A;Processed zona pellucida sperm-binding protein 2;ZP2;ZPA; |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human ZP2, different from the related mouse sequence by six amino acids, and from the related rat sequence by four amino acids. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
This antibody is intended for detection of ZP2 (Zona pellucida sperm-binding protein 2) in biological samples using common immunoassay formats. It is typically selected based on target identity, species reactivity, clonality/clone information, and detection modality.
Vendor notes: Boster Bio Anti-ZP2 Antibody Picoband® catalog # PB9912. Tested in IHC, WB applications. This antibody reacts with Human. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.
Key elements and design rationale
- Antibody format: Rabbit Polyclonal Rabbit IgG
- Immunogen / epitope context: A synthetic peptide corresponding to a sequence at the N-terminus of human ZP2, different from the related mouse sequence by six amino acids, and from the related rat sequence by four amino acids.
- Molecular weight context: reported MW: 82 kDa; calculated MW: 82357 MW
- Reactivity: Human
- Applications: IHC, WB
As a polyclonal antibody, the reagent recognizes multiple epitopes on the target, which can improve detection robustness but may increase sensitivity to sample-dependent epitope changes.
Biological background
Zona pellucida sperm-binding protein 2; Zona pellucida sperm-binding protein 2. Zona pellucida sperm-binding protein 2 is a protein that in humans is encoded by the ZP2 gene. The sperm-binding domain on the ZP2 protein is necessary in both humans and mice for oocyte-sperm recognition and penetration of the zona pellucida. It is also responsible for the primary block to polyspermy in mammals. The oocyte has cortical granules peripherally located under the cortex that contain a proteolytic protein called ovastacin. After the sperm binds to ZP2, the cortical granules are exocytosed releasing ovastacin into the perivitelline space. Ovastacin cleaves ZP2 at the N terminus, preventing more sperm from binding and penetrating the oocyte, thus hardening the zona pellucida. Ovastacin is only found in oocytes, and is part of the astacin family of metalloendoproteases. Female mice engineered without ovastacin showed that ZP2 was not cleaved after fertilization. Functional note: The mammalian zona pellucida, which mediates species- specific sperm binding, induction of the acrosome reaction and prevents post-fertilization polyspermy, is composed of three to four glycoproteins, ZP1, ZP2, ZP3, and ZP4. ZP2 may act as a secondary sperm receptor. . Reported localization: Processed zona pellucida sperm-binding protein 2: Secreted, extracellular space, extracellular matrix . The glycoproteinaceous translucent extracellular matrix that surrounds the mammalian oocyte is called zona pellucida. . Expression/tissue context: Widely expressed. In normal thymus, expressed in medullary epithelial cells and Hassle's corpuscles (at protein level). In the spleen, mainly expressed in the white pulp germinal centers (at protein level). Up-regulated in thymic lymphomas. .
Research relevance and current trends
- Developmental Biology: Researchers commonly examine how ZP2 (Zona pellucida sperm-binding protein 2) relates to this theme using model systems and orthogonal readouts.
- Reproduction: Researchers commonly examine how ZP2 (Zona pellucida sperm-binding protein 2) relates to this theme using model systems and orthogonal readouts.
Common research applications
- Western blotting: compare relative ZP2 (Zona pellucida sperm-binding protein 2) levels across conditions; band patterns may reflect isoforms and processing.
- IHC/IHC-F: assess spatial distribution of ZP2 (Zona pellucida sperm-binding protein 2) across tissue regions and cell types using matched controls.
Notes for experimental interpretation
- Specificity notes: No cross reactivity with other proteins.
- Cross-reactivity: No cross-reactivity with other proteins.
- Isoforms and PTMs: Apparent size and signal patterns can differ across splice isoforms, proteolytic processing, and post-translational modifications.
- Controls: Include an isotype control (as relevant), no-primary control for imaging, and orthogonal validation such as KD/KO samples when available.
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.
