My question pertains to the generation of polyclonal antibodies from synthetic peptides, such as those provided by GenScript, for use in ChIP-Seq. I recognize a potential problem in submitting a single peptide for antibody generation: that the specific protein epitope recognized by the antibody and represented by the synthetic peptide will not be exposed after formaldehyde cross-linking of the protein-DNA complex. Would it therefore be possible to obtain a polyclonal antibody by inoculating rabbits with two synthetic peptides from the same protein, such that more than one epitope may be recognized by the antibody?
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I don't think the 2-peptide strategy will work because each of the peptide will be independently displayed by the immune system. I know of a few companies that are trying this approach (with a single peptide) and are having marginal success.
If you are married to using a peptide antigen, you may want to try raising a monoclonal so you can screen for the desired properties (recognizing DNA-bound protein). Here though, the major challenge is having target to use in your screening.
Another thought would be to try a genetic immunization approach (like SDI). I've never tried them, but it looks look on paper...
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Researchers using sequencing and genomics tools often have to make trade-offs. They can choose between speed or scale, short reads or long-range information, or targeted panels or a view of the whole transcriptome. New technologies that have been released this year are built to address those tough choices.
We asked six companies the same four questions to learn about their latest products. The new technologies bring a lot to the table, including rethinking sequencing... -
The immune system’s power comes from its genetic diversity, allowing myriad threats to be neutralized through first recognizing foreign antigens. That diversity is also what makes the immune system so difficult to study. Recent advances in sequencing technology and computational biology, however, are giving researchers new tools to understand immune responses and immune-related diseases in greater detail.
This convergence of genetics, immunology, and computation...09-01-2026, 05:41 AM
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