According to systematic nomenclature, in what form are enzymes expressed?

Including the systematic nomenclature of enzymes and four enzyme numbers classified by numbers, such as the nomenclature of the following reactions catalyzed by enzymes:

ATP+D- glucose →ADP+D- glucose -6- phosphate

The official system name of the enzyme that catalyzes the reaction is ATP: phosphotransferase, which means that the enzyme catalyzes the transfer of 1 phosphate group from ATP to glucose molecule. Its classification number is E. C 2.7. 1. 1, E. C stands for the name stipulated by the International Enzymology Committee, the first number 2 stands for the classification name of the enzyme (transferase), the second number 7 stands for the subclass (phosphotransferase), and the third number 1 stands for the subclass (phosphotransferase with hydroxyl as receptor).