Question

The covalent attachment of an acetyl group to a protein is an example of?

1) posttranslational modification
2) protein degradation
3) Acetyl groups do not covalently attach to proteins
4) transcriptional regulation

Answer 1

The attachment of an acetyl group to a protein is a posttranslational modification that alters the protein's characteristics and behavior within the cell.

Step-by-step explanation:

The covalent attachment of an acetyl group to a protein is an example of posttranslational modification. Posttranslational modifications are chemical changes that proteins may undergo after synthesis (translation) and often play a vital role in regulating the activity, stability, and location of the protein within the cell. These modifications can include the addition of various functional groups such as methyl, phosphate, and acetyl groups, which can alter protein function and interactions.