Final answer:
Ion channels are not commonly known to include oncogenes, as they are not directly involved in controlling cell growth and division like some other proteins.
Step-by-step explanation:
The group of proteins that is NOT commonly known to include oncogenes is D. ion channels. Oncogenes are cancer-causing genes that include mutated forms of normal genes involved in cell growth and division. While signal-transduction proteins, DNA-repair enzymes, and transcription factors can include oncogenes due to their direct involvement in controlling the cell cycle and DNA maintenance, ion channels, which are integral proteins embedded in cell membranes and help in the transport of ions across membranes, are usually not associated with oncogenes.