do regulatory genes synthesize protein
In prokaryotic cells, this involves the induction, repression, or enhancement of enzyme synthesis by regulatory proteins (def) that can bind to DNA and either induce, block, or enhance the function of RNA polymerase (def), the enzyme required for transcription.
We reasoned that the previous failure to identify genes predisposing or contributing to PTC might be because these genes show low penetrance. The mechanisms may require the interaction of two or more genes; thus, regulatory, rather than protein-encoding, genes might be involved. We undertook this study to elucidate the role of regulatory genes such as the