Anti-Phospho-KAP1 (S824) Rabbit Monoclonal Antibody

Overview

This product is an anti-TRIM28 antibody for target detection and characterization. Key identifiers include host species: Rabbit; Monoclonal; clone 22T44; isotype IgG; reactivity: Human. Reported application contexts include WB, IP (as provided in the source record). Boster Bio Anti-Phospho-KAP1 (S824) Rabbit Monoclonal Antibody catalog # P00409. Tested in WB, IP applications. This antibody reacts with Human.

Key elements and design rationale

• Target: TRIM28 (Dual specificity mitogen-activated protein kinase kinase 1).
• Antibody format: Monoclonal; clone 22T44; isotype IgG.
• Host: Rabbit.
• PTM context: Phospho site information provided: S824.
• Species reactivity: Human (confirm in your model system with appropriate controls).

This description is intended to help interpret the antibody design and the biological context of the target using the fields provided in the catalog record, alongside general experimental considerations.

Biological background

TRIM28 is a commonly studied target in molecular and cellular biology. Functional context (as provided): Dual specificity protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Binding of extracellular ligands such as growth factors, cytokines and hormones to their cell-surface receptors activates RAS and this initiates RAF1 activation. RAF1 then further activates the dual-specificity protein kinases MAP2K1/MEK1 and MAP2K2/MEK2. Both MAP2K1/MEK1 and MAP2K2/MEK2 function specifically in the MAPK/ERK cascade, and catalyze the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in the extracellular signal-regulated kinases MAPK3/ERK1 and MAPK1/ERK2, leading to their activation and further transduction of the signal within the MAPK/ERK cascade. Depending on the cellular context, this pathway mediates diverse biological functions such as cell growth, adhesion, survival and differentiation, predominantly through the regulation of transcription, metabolism and cytoskeletal rearrangements. One target of the MAPK/ERK cascade is peroxisome proliferator- activated receptor gamma (PPARG), a nuclear receptor that promotes differentiation and apoptosis. MAP2K1/MEK1 has been shown to export PPARG from the nucleus. The MAPK/ERK cascade is also involved in the regulation of endosomal dynamics, including lysosome processing and endosome cycling through the perinuclear recycling compartment (PNRC), as well as in the fragmentation of the Golgi apparatus during mitosis. . Reported cellular localization context: Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, microtubule organizing center, spindle pole body. Cytoplasm. Nucleus. Localizes at centrosomes during prometaphase, midzone during anaphase and midbody during telophase/cytokinesis. Tissue expression notes (as provided): Widely expressed, with extremely low levels in brain. .

Research relevance and current trends

• Research context keywords from the source record include: MAPK Pathway,Protein Phosphorylation,Ser/Thr Kinases,Signal Transduction.
• Current studies often focus on connecting target abundance/localization to pathway perturbations across models, tissues, and cell states.
• Quantitative and multiplexed assays (e.g., imaging + immunoblot panels) are commonly used to compare phenotypes across conditions and time-courses.
• When phosphorylation is relevant, researchers frequently track stimulus-driven changes and compare phospho-state to total protein abundance.

Common research applications

• Western blotting (WB): assess relative target abundance across samples, treatments, or time-points.
• Immunoprecipitation (IP): enrich target complexes for downstream immunoblot or interaction analyses.

Workflow ideas (metafield): Validate TRIM28 antibody specificity using KO/KD control samples (WB/IF/IHC as appropriate), Detect TRIM28 expression by Western blot in cell or tissue lysates, Enrich TRIM28 by immunoprecipitation from lysates for downstream analysis

Notes for experimental interpretation

• Consider isoforms and post-translational modifications (PTMs) that may shift apparent molecular weight or epitope accessibility.
• Apparent molecular weight may vary by sample type and processing (observed MW: 100 kDa; calculated MW: 43439 MW).
• Control concepts: include appropriate negative controls (e.g., isotype, KO/KD samples) and orthogonal validation when feasible.

Additional product details (from the source record)

• Molecular weight (observed): 100 kDa
• Cellular localization (provided): Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, microtubule organizing center, spindle pole body. Cytoplasm. Nucleus. Localizes at centrosomes during prometaphase, midzone during anaphase and midbody during telophase/cytokinesis.
• Tissue details (provided): Widely expressed, with extremely low levels in brain. .

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.