Efficient Small-Scale Conjugation of DNA to Primary Antibodies for Multiplexed Cellular Targeting.

ABSTRACT: The combination of the specificity of antibodies and the programmability of DNA nanotechnology has provided the scientific community with a powerful tool to label and unambiguously distinguish a large number of subcellular targets using fluorescence-based read-out methods. Whereas primary antibodies are commercially available for a large class of targets, a general stoichiometric site-selective DNA labeling strategy for this affinity reagent is lacking. Here we present a universal, site-selective conjugation method using a small photo-cross-linkable protein G adaptor that allows labeling of antibodies of different host species with a controlled number of short oligonucleotides (ODNs). Importantly, we illustrate that this conjugation method can be directly performed on commercially availabl

SUBMITTER: Cremers GAO 

PROVIDER: S-EPMC6753658 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature