BSP1 Antibody

Target and Structure

BSP-1 is a murine monoclonal antibody (IgM subclass) that binds to a 45 kDa surface antigen on human basophils and specific leukemia cell lines, including HEL (human erythroleukemic) and KU812 (basophilic leukemia) . It does not react with neutrophils or eosinophils .

Applications in Research

• Basophil Identification: BSP-1 reacts with peripheral blood basophils, which express CD11, CD13, CD45, and HLA-ABC antigens but lack lymphoid/monocytic markers .

• Leukemia Studies: The antibody identifies antigens in chronic myeloid leukemia with basophilia and acute undifferentiated leukemia, aiding in lineage-specific diagnostics .

Target and Development

Binder of Sperm Protein 1 (BSP1) is a biomarker for male fertility in ruminants. Synthetic vaccines targeting BSP1 have been designed to generate antibodies for fertility diagnostics. The peptide sequence LPEDSVPDEERVFPFTYRNRKHF from Bubalus bubalis (water buffalo) was used to develop antibodies .

Key Findings

• Vaccine Design: The synthetic peptide vaccine elicited antibodies in rabbits, confirmed via immunoblot assays .

• Species Specificity: Antibodies showed stronger reactivity to buffalo frozen semen than cattle semen, suggesting species-specific epitopes .

• Structural Insights: Molecular docking revealed peptide-ligand interactions critical for antibody efficacy .

Immunoblot Results

Comparative Analysis of BSP1 Antibodies

Research Implications

• Human Health: BSP-1 aids in understanding basophil differentiation and leukemia subtyping .

• Veterinary Science: Antibodies against BSP1 enable non-invasive fertility assessment in livestock, potentially improving breeding programs .