Anti-Rabbit IgG F(ab')2 fragment-ATTO 488, whole molecule antibody produced in goat

Anti-Rabbit IgG F(ab')2 fragment-ATTO 488, whole molecule antibody produced in goat is a fluorescent secondary antibody conjugate designed for immunofluorescence workflows where rabbit IgG detection is required with reduced steric effects. The ATTO 488 fluorophore enables green-channel visualization on standard fluorescence microscopes and plate-based readers, while the F(ab')2 format improves labeling performance on densely antigenic targets compared with full-length IgG. This reagent is commonly used in cell biology, protein localization studies, and assay development where robust, specific staining of rabbit primary antibodies is needed.

1. Immunofluorescence Protein Localization

Anti-Rabbit IgG F(ab')2 fragment-ATTO 488, whole molecule antibody produced in goat is widely used as a secondary antibody for fluorescence microscopy to visualize rabbit primary antibodies against target proteins, epitopes, or tagged constructs. Researchers typically apply it in fixed-cell and fixed-tissue staining protocols to generate high-contrast green fluorescence for subcellular localization studies, co-localization experiments, and multi-marker panels. The F(ab')2 fragment format helps maintain strong binding to rabbit IgG while limiting nonspecific background associated with full-length secondary antibodies in complex samples.

2. Flow Cytometry Antibody Staining

Anti-Rabbit IgG F(ab')2 fragment-ATTO 488, whole molecule antibody produced in goat supports fluorescence-based cytometry workflows for detecting rabbit primary antibody binding on cell surfaces or intracellular targets after permeabilization. In flow cytometry and imaging flow cytometry, the ATTO 488 label provides a convenient readout in the green emission channel for gating strategies and quantitative comparisons across experimental conditions. The F(ab')2 secondary format is often selected to improve labeling uniformity and reduce potential steric hindrance when rabbit antibodies bind closely packed epitopes.

3. Western Blot Fluorescent Detection

Anti-Rabbit IgG F(ab')2 fragment-ATTO 488, whole molecule antibody produced in goat is used as a fluorescent secondary antibody for immunoblotting workflows where rabbit primary antibodies are detected with a green fluorophore readout. This approach is common in protein expression and biomarker studies, enabling band visualization on fluorescence-capable imaging systems without relying on enzyme-substrate color development. The F(ab')2 fragment can provide efficient binding to rabbit IgG on membrane-bound targets, supporting consistent staining across replicate blots.

4. Multiplex Fluorescence Co-Staining

Anti-Rabbit IgG F(ab')2 fragment-ATTO 488, whole molecule antibody produced in goat is also used in multiplex immunostaining experiments that combine multiple primary antibodies from different species. In such panels, this reagent serves as a dedicated secondary for rabbit IgG, allowing researchers to assign a defined green channel signal to a specific target while coordinating with other fluorophores for additional markers. The conjugated F(ab')2 format helps streamline panel design by providing predictable secondary labeling behavior in multi-color imaging and assay development.