RPB1 (RNA Polymerase II subunit)

RPB1 is the largest and most essential part of RNA Polymerase II, an enzyme responsible for transcribing DNA into messenger RNA (mRNA), which guides protein production in cells. Think of RPB1 as the main engine component that drives the transcription process, enabling genes to be turned into the actual messages used to make proteins. Its structure and function are critical for gene expression, and changes in RPB1 can affect how genes are expressed, potentially leading to diseases like cancer. Overall, RPB1 plays a vital role in how cells read and utilize genetic information.