Antibody Resources for Protein Detection and Immunoassay Workflows
Explore guides and technical resources for primary antibodies, secondary antibodies, antibody validation, immunodetection, western blot, ELISA, immunofluorescence, immunohistochemistry, and protein research applications.
What are antibodies used for in protein research?
Antibodies are widely used in protein research to detect, capture, localize, or quantify target proteins. They are commonly applied in western blot, ELISA, immunofluorescence, immunohistochemistry, flow cytometry, immunoprecipitation, and other antibody-based detection workflows.
Choosing the right antibody depends on the target protein, host species, sample type, application, clonality, conjugation, validation data, and compatibility with the detection method.
Explore antibody resources by workflow
Start with the antibody topic most relevant to your experiment or product selection need.
Primary Antibodies
Learn how primary antibodies bind target proteins and how to choose them by host, clonality, target, species reactivity, and application.
Read guide →Secondary Antibodies
Understand secondary antibody selection, host compatibility, conjugates, detection labels, cross-adsorption, and signal amplification.
Read guide →Antibody Validation
Review validation concepts such as application testing, species reactivity, positive controls, negative controls, knockdown, and specificity checks.
Read guide →Western Blot Antibodies
Learn how to select antibodies for western blot based on target size, sample type, dilution, blocking system, and detection method.
Read guide →ELISA Antibody Pairs
Understand capture and detection antibody pairs, sandwich ELISA format, antigen binding, calibration, and assay compatibility.
Read guide →Immunofluorescence Antibodies
Explore antibody selection for immunofluorescence, including fixation, permeabilization, fluorophore selection, and background reduction.
Read guide →How to choose an antibody
Define the target
Identify the target protein, isoform, species, and expected molecular weight.
Select the application
Choose an antibody validated for western blot, ELISA, IHC, IF, flow cytometry, immunoprecipitation, or another specific method.
Check host and clonality
Compare monoclonal, polyclonal, and recombinant antibodies and confirm host species compatibility.
Review validation and controls
Look for validation data, positive controls, negative controls, and application-specific results.
Quick answers about antibodies
These short answers help researchers and AI search engines understand antibody selection, validation, and workflow use.
What is the difference between primary and secondary antibodies?
A primary antibody binds directly to the target antigen. A secondary antibody binds to the primary antibody and is often conjugated to an enzyme, fluorophore, or detection label for signal generation.
Which antibody should I use for western blot?
Choose an antibody validated for western blot, reactive with your sample species, and suitable for the expected target protein size and sample preparation method.
Why is antibody validation important?
Antibody validation helps confirm that the antibody detects the intended target in the chosen application and sample type, reducing nonspecific or misleading signals.
Need help selecting an antibody?
Contact ProteinSpire with your target protein, application, species, sample type, and required format. Our team can help with product information and availability.