| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Transcription factor Sp3;SPR-2;SP3; |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human SP3, identical to the related mouse sequence. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
This antibody is intended for detection of SP3 (Transcription factor Sp3) 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-SP3 Antibody Picoband® catalog # PB9508. Tested in IHC, WB applications. This antibody reacts with Human, Mouse, Rat. 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 C-terminus of human SP3, identical to the related mouse sequence.
- Molecular weight context: reported MW: 82 kDa; calculated MW: 81925 MW
- Reactivity: Human,Mouse,Rat
- 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
Transcription factor Sp3; Transcription factor Sp3. Sp3 transcription factor, also known as SP3, refers to both a protein and the gene it is encoded by. This gene belongs to a family of Sp1 related genes that encode transcription factors that regulate transcription by binding to consensus GC- and GT-box regulatory elements in target genes. And this protein contains a zinc finger DNA-binding domain and several transactivation domains, and has been reported to function as a bifunctional transcription factor that either stimulates or represses the transcription of numerous genes. Transcript variants encoding different isoforms have been described for this gene, and one has been reported to initiate translation from a non-AUG (AUA) start codon. Additional isoforms, resulting from the use of alternate downstream translation initiation sites, have also been noted. A related pseudogene has been identified on chromosome 13. Functional note: Transcriptional factor that can act as an activator or repressor depending on isoform and/or post-translational modifications. Binds to GT and GC boxes promoter elements. Competes with SP1 for the GC-box promoters. Weak activator of transcription but can activate a number of genes involved in different processes such as cell-cycle regulation, hormone- induction and house-keeping. . Reported localization: Nucleus. Nucleus, PML body. Localizes to the nuclear periphery and in nuclear dots when sumoylated. Some localization in PML nuclear bodies. Expression/tissue context: Ubiquitously expressed.
Research relevance and current trends
- Epigenetics and Nuclear Signaling: Researchers commonly examine how SP3 (Transcription factor Sp3) relates to this theme using model systems and orthogonal readouts.
- Transcription: Researchers commonly examine how SP3 (Transcription factor Sp3) relates to this theme using model systems and orthogonal readouts.
- Transcription Factors: Researchers commonly examine how SP3 (Transcription factor Sp3) relates to this theme using model systems and orthogonal readouts.
Common research applications
- Western blotting: compare relative SP3 (Transcription factor Sp3) levels across conditions; band patterns may reflect isoforms and processing.
- IHC/IHC-F: assess spatial distribution of SP3 (Transcription factor Sp3) 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
- Family / similarity context: Belongs to the Sp1 C2H2-type zinc-finger protein family.
- 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.
