Anti-beta Defensin 1 Rabbit Monoclonal Antibody

Overview

This product is an anti-DEFB1 antibody for target detection and characterization. Key identifiers include host species: Rabbit; Monoclonal; clone 20D19; isotype IgG; reactivity: Human. Reported application contexts include WB (as provided in the source record). Boster Bio Anti-beta Defensin 1 Rabbit Monoclonal Antibody catalog # M02551. Tested in WB application. This antibody reacts with Human.

Key elements and design rationale

• Target: DEFB1 (Proline-, glutamic acid- and leucine-rich protein 1).
• Antibody format: Monoclonal; clone 20D19; isotype IgG.
• Host: Rabbit.
• 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

DEFB1 (protein: T-cell surface glycoprotein CD3 zeta chain) is a commonly studied target in molecular and cellular biology. Functional context (as provided): Coactivator of estrogen receptor-mediated transcription and a corepressor of other nuclear hormone receptors and sequence- specific transcription factors. Plays a role in estrogen receptor (ER) genomic activity when present in the nuclear compartment by activating the ER target genes in a hormonal stimulation dependent manner. Can facilitate ER non-genomic signaling via SRC and PI3K interaction in the cytosol. Plays a role in E2-mediated cell cycle progression by interacting with RB1. May have important functional implications in ER/growth factor cross-talk. Interacts with several growth factor signaling components including EGFR and HRS. Involved in nuclear receptor signaling via its interaction with AR and NR3C1. May promote tumorigenesis via its interaction with and modulation of several oncogenes including SRC, PI3K, STAT3 and EGFR. Plays a role in cancer cell metastasis via its ability to modulate E2-mediated cytoskeleton changes and cell migration via its interaction with SRC and PI3K. Functions as the key stabilizing component of the Five Friends of Methylated CHTOP (5FMC) complex; the 5FMC complex is recruited to ZNF148 by methylated CHTOP, leading to desumoylation of ZNF148 and subsequent transactivation of ZNF148 target genes. . Reported cellular localization context: Nucleus, nucleoplasm . Nucleus. Cytoplasm. Mainly found in the nucleoplasm, with low levels detected in the cytoplasm (By similarity). Also found associated with the plasma membrane. Mainly in cytoplasm in a subset of breast tumors. Localization is widely deregulated in endometrial cancers with predominantly cytoplasm localization in high-grade endometrial tumors. . Tissue expression notes (as provided): Widely expressed. .

Research relevance and current trends

• Research context keywords from the source record include: Chromatin Binding Proteins,DNA/RNA,DNA/RNA Binding,Epigenetics and Nuclear Signaling,Nuclear Receptors,Nuclear Signaling Pathways,RNA Processing,Transcription.
• 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.

Workflow ideas (metafield): Validate DEFB1 antibody specificity using KO/KD control samples (WB/IF/IHC as appropriate), Detect DEFB1 expression by Western blot in cell or tissue lysates, Compare relative DEFB1 levels across experimental conditions (dose/time-course) using antibody-based readouts

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: 23 kDa; calculated MW: 119700 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): 23 kDa
• Cellular localization (provided): Nucleus, nucleoplasm . Nucleus. Cytoplasm. Mainly found in the nucleoplasm, with low levels detected in the cytoplasm (By similarity). Also found associated with the plasma membrane. Mainly in cytoplasm in a subset of breast tumors. Localization is widely deregulated in endometrial cancers with predominantly cytoplasm localization in high-grade endometrial tumors. .
• Tissue details (provided): Widely expressed. .

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.