has_participant assay by array array chromosome conformation capture assay 3C Sirarat Sarntivijai 3C stands for "chromosome conformation capture", which is the original method developed for the class of techniques later collectively also called "chromosome conformation capture". A 3C experiment quantifies interactions between a single pair of genomic loci, which can be used, for example, to detect promoter-enhancer interactions. Ligated fragments are detected using PCR with known primers. 3-C