जीवित कोशिकाओं में प्रोटीन-टुकड़ा complementation परख (पीसीए) द्वारा जीनोम चौड़ा प्रोटीन प्रोटीन सहभागिता स्क्रीनिंग

Proteins interact with each other and these interactions determine in a large part their functions. Protein interaction partners can be identified at high-throughput in vivo using a yeast fitness assay based on the dihydrofolate reductase protein-fragment complementation assay (DHFR-PCA).