If DNA only directs the synthesis of protein, how can it be said that DNA controls all of?

If DNA only directs the synthesis of protein, how can it be said that DNA controls all of the activities of the cell, including those which don鈥檛 obviously involve proteins?





If DNA only directs the synthesis of protein, how can it be said that DNA controls all of?
All metabolic activities are controlled by enzymes. Peptide hormones are direct gene products.If DNA only directs the synthesis of protein, how can it be said that DNA controls all of?
DNA doesn't controla ll the activities of a cell, except that it makes them all possible. It directs the synthesis of RNA, not protein, but RNA is translated into protein, and proteins control the activities of a cell that don't involve proteins, largely as enzymes that catalyze the formation of those non-protein molecules. There are certainly exceptions in which regulatory RNA molecules control this or that, but those are encoded by DNA as well.
Because proteins are essential parts of organisms and participate in EVERY process within cells, directly or indirectly. Many proteins are enzymes that catalyze biochemical reactions and are vital to metabolism. Proteins also have structural or mechanical functions, such as actin and myosin in muscle and the proteins in the cytoskeleton, which form a system of scaffolding that maintains cell shape. Other proteins are important in cell signaling, immune responses, cell adhesion, and the cell cycle.
I think that if you try to find an activity of a cell which does not involve proteins, you will not find any.