Co-factor Tree:
Co-factors can be divided into two groups as
"Essential Ions" and
"Co-enzymes".
- Essential ions which are loosely are further categorized into two kinds- activator ions (loosely bound to proteins) and metal ions also called metallo-enzymes (tightly bound to proteins).
- Co-enzymes are also further categorized in two kinds- co-substrates (loosely bound to the proteins) and prosthetic groups (tightly bound to proteins).