D. Winkler, P. Mcgeer
Mar 1, 2008
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Journal
PROTEOMICS
Abstract
Biotin‐labeled peptides are used for numerous biochemical and microbiological applications. Due to the strong affinity of biotin to streptavidin, the detection of biotinylated molecules is very sensitive. A powerful technique for parallel synthesis and high‐throughput screening of peptides is the spot synthesis. One example for the use of spot synthesis is the screening of biotinylated peptides synthesized on cellulose membranes, which is particularly favorable for the investigation of protease cleavage sites. Additionally, in combination with biotinylated protein samples, the spot technique can be used for investigations of peptide–protein and protein–protein interactions. Here, we present our results of the use biotin p‐nitrophenyl ester (biotin‐ONp) in spot synthesis and as a reagent for biotin‐labeling of protein samples.