Anti-FOXP1 Monoclonal Antibody

Overview

This product is an anti-FOXP1 antibody for target detection and characterization. Key identifiers include host species: Rabbit; Monoclonal; clone AFFD-6; isotype Rabbit IgG; reactivity: Human,Mouse,Rat. Reported application contexts include WB, IHC, ICC, IF, IP, Flow (as provided in the source record). Boster Bio Anti-FOXP1 Monoclonal Antibody catalog # M00723-1. Tested in WB, IHC, ICC/IF, IP, Flow Cytometry applications. This antibody reacts with Human, Mouse, Rat.

Key elements and design rationale

• Target: FOXP1 (Forkhead box protein P1).
• Antibody format: Monoclonal; clone AFFD-6; isotype Rabbit IgG.
• Host: Rabbit.
• Species reactivity: Human,Mouse,Rat (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

FOXP1 (protein: T-cell surface glycoprotein CD4) is a commonly studied target in molecular and cellular biology. Functional context (as provided): Transcriptional repressor (PubMed:18347093). Can act with CTBP1 to synergistically repress transcription but CTPBP1 is not essential (By similarity). Plays an important role in the specification and differentiation of lung epithelium. Acts cooperatively with FOXP4 to regulate lung secretory epithelial cell fate and regeneration by restricting the goblet cell lineage program; the function may involve regulation of AGR2. Essential transcriptional regulator of B-cell development. Involved in regulation of cardiac muscle cell proliferation. Involved in the columnar organization of spinal motor neurons. Promotes the formation of the lateral motor neuron column (LMC) and the preganglionic motor column (PGC) and is required for respective appropriate motor axon projections. The segment-appropriate generation of spinal chord motor columns requires cooperation with other Hox proteins. Can regulate PITX3 promoter activity; may promote midbrain identity in embryonic stem cell-derived dopamine neurons by regulating PITX3. Negatively regulates the differentiation of T follicular helper cells T (FH)s. Involved in maintainance of hair follicle stem cell quiescence; the function probably involves regulation of FGF18 (By similarity). Represses transcription of various pro-apoptotic genes and cooperates with NF-kappa B-signaling in promoting B-cell expansion by inhibition of caspase-dependent apoptosis (PubMed:25267198). Binds to CSF1R promoter elements and is involved in regulation of monocyte differentiation and macrophage functions; repression of CSF1R in monocytes seems to involve NCOR2 as corepressor (PubMed:15286807, PubMed:18799727, PubMed:18347093). Involved in endothelial cell proliferation, tube formation and migration indicative for a role in angiogenesis; the role in neovascularization seems to implicate suppression of SEMA5B (PubMed:24023716). Can negatively regulate androgen receptor signaling (PubMed:18640093). . Reported cellular localization context: Nucleus . Tissue expression notes (as provided): Isoform 8 is specifically expressed in embryonic stem cells. .

Research relevance and current trends

• Research context keywords from the source record include: Cancer,Domain Families,Epigenetics and Nuclear Signaling,Forkhead Box,Oncoproteins/Suppressors,Transcription,Tumor Suppressors.
• 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.

Common research applications

• Western blotting (WB): assess relative target abundance across samples, treatments, or time-points.
• Immunohistochemistry (IHC): evaluate spatial distribution of target-positive staining in tissue architecture.
• Immunofluorescence/ICC (IF/ICC): visualize subcellular localization patterns and cell-to-cell heterogeneity.
• Flow cytometry: quantify target-positive populations and compare shifts in marker distributions.
• Immunoprecipitation (IP): enrich target complexes for downstream immunoblot or interaction analyses.

Workflow ideas (metafield): Validate FOXP1 antibody specificity using KO/KD control samples (WB/IF/IHC as appropriate), Detect FOXP1 expression by Western blot in cell or tissue lysates, Detect FOXP1 in FFPE tissue sections by immunohistochemistry, Localize FOXP1 by immunofluorescence/immunocytochemistry in cultured cells, Quantify FOXP1-positive cells by flow cytometry in single-cell suspensions, Enrich FOXP1 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: 90 kDa; calculated MW: 75317 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): 90 kDa
• Cellular localization (provided): Nucleus .
• Tissue details (provided): Isoform 8 is specifically expressed in embryonic stem cells. .

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.