FluoSite™ Anti-Claudin-18 Isoform 2 Antibody, PE-Labeled

What it means: Monoclonal antibodies are produced by a single B-cell clone, meaning every molecule in this preparation binds to one identical epitope on the target antigen.

Why it matters:

• Monoclonal specificity eliminates batch-to-batch variability common with polyclonal preparations, making results reproducible across experiments.
• High batch-to-batch consistency ensures reliable quantitative assays such as ELISA and flow cytometry.

How to interpret here: This monoclonal antibody is validated for use in research assays where single-epitope binding and reproducibility are critical. Always verify the target epitope does not overlap with post-translational modifications or mutations in your model system.

What it means: A Human-origin antibody is produced using recombinant human immunoglobulin gene sequences, eliminating xenoreactive immunogenicity encountered with murine antibodies.

Why it matters:

• Human antibodies are ideal for cell-based functional assays where Fc receptor engagement or complement activation by non-human Fc regions would confound results.
• Validated comparator reagents for human therapeutic antibodies must share the same human isotype for meaningful benchmarking.

How to interpret here: This Human antibody can engage human FcγRs and Fc-mediated effector pathways (ADCC, ADCP, CDC) in primary cell co-culture assays, making it appropriate for immuno-oncology mechanistic studies.

What it means: Species Reactivity (Human) indicates this antibody has been validated to bind its target antigen derived from human cells or human recombinant protein.

Why it matters:

• Species reactivity determines which cell types and model organisms are compatible with this reagent — avoid using Human-only antibodies in rodent models without confirming cross-reactivity.
• BPS antibodies are validated against the specified recombinant antigen; reactivity with endogenous target in primary human cells should be experimentally confirmed in your laboratory.

How to interpret here: This antibody is validated for Human reactivity. If cross-reactivity with murine or other species is required, refer to the Cross-Reactivity section of the datasheet or contact BPS Bioscience for additional information.

What it means: PE (phycoerythrin) is a bright, tandem fluorescent protein conjugated directly to this antibody, enabling single-step fluorescent labeling without secondary antibody requirements.

Why it matters:

• PE is one of the brightest fluorophores available (excitation ~496/565 nm, emission ~578 nm), providing high sensitivity for detection of low-density surface antigens by flow cytometry and immunofluorescence.
• Direct PE conjugation eliminates secondary antibody steps and reduces background in multiplex staining panels.

How to interpret here: This PE-labeled antibody is part of the FluoSite™ series, pre-optimized for flow cytometry and immunofluorescence microscopy. Use appropriate laser/filter settings (532 nm or 561 nm excitation; 585/42 nm or 610/20 nm bandpass emission filter).

What it means: IgG1 is the most abundant human IgG subclass, characterized by strong Fcγ receptor binding and efficient complement activation relative to IgG2 and IgG4 subclasses.

Why it matters:

• IgG1 mediates antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) through FcγRIII and C1q interactions — critical parameters for immuno-oncology research tools.
• When using IgG1 antibodies as reference standards for therapeutic benchmarking, the subclass must match the clinical candidate for meaningful Fc-mediated comparisons.

How to interpret here: This IgG1 isotype antibody is appropriate for studies evaluating Fc-mediated effector functions (ADCC, ADCP, CDC) in addition to target-binding studies.

What it means: The validated application list specifies which experimental formats this antibody has been tested and confirmed to work in by BPS Bioscience.

Why it matters:

• Validated applications confirm that the antibody meets performance criteria (sensitivity, specificity, signal-to-noise) under defined assay conditions.
• Using an antibody outside its validated application without empirical optimization may yield suboptimal or unreliable results.

How to interpret here: Applications listed are those confirmed by the manufacturer. Additional applications may be feasible but require independent optimization. Contact BPS Bioscience or BioHippo support for application-specific guidance.