CLASSIFICATION OF ENZYMES
NAD+ Acts as a coenzyme for ‑
| A |
Xanthine oxidase |
|
| B |
L-amino acid oxidase |
|
| C |
Succinate dehydrogenase |
|
| D |
Malate dehydrogenase |
NAD+ Acts as a coenzyme for ‑
| A |
Xanthine oxidase |
|
| B |
L-amino acid oxidase |
|
| C |
Succinate dehydrogenase |
|
| D |
Malate dehydrogenase |
According to IUB classification of enzyme, 4th digit in enzyme refers to ‑
| A |
Main class |
|
| B |
Subclass |
|
| C |
Sub-subclass |
|
| D |
Individual enzyme |
According to IUB classification of enzyme, 4th digit in enzyme refers to ‑
| A |
Main class |
|
| B |
Subclass |
|
| C |
Sub-subclass |
|
| D |
Individual enzyme |
The classification of enzyme was described in 1961 by enzyme commission of the international Union of Biochemistry (IUB). According to this classification, each enzyme code number or ‘EC’ number, consisting of four digits:-
- The first digit indicates the main class; that characterizes the type of reaction they catalyzed.
- Second digit indicates the subclass. This indicates the type of group involved in the reaction.
- Third digit indicates the sub-subclass, which denotes the substrate on which enzyme acts.
- The fourth digit specifies the individual enzyme. It indicates the systematic serial number and name. For example, lactate dehydrogenase (LDH) : EC (1.1.1.27)
- The first number indicates that the enzyme is an oxidoreductase.
- Second number indicates that the enzyme acts on the CH-OH group which is the donor of hydrogen.
- The third number indicates that the acceptor is NAD.
Which type of enzyme is Transaminase?
| A |
Xidoreductase |
|
| B |
Isomerase |
|
| C |
Ligases |
|
| D |
Transferase |
Which type of enzyme is Transaminase?
| A |
Xidoreductase |
|
| B |
Isomerase |
|
| C |
Ligases |
|
| D |
Transferase |
