Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
All RIPAb+ antibodies are validated for RNA-binding protein immunoprecipitation. Each RIPAb+ antibody set includes control primers (each lot tested by qPCR) to biologically validate your RIP results by qPCR detection of specific RNAs where possible. Each RIPAb+ set also includes a negative control antibody to guarantee specificity of the RIP reaction.