| Interaction has been measured in this way for ligand-receptor pairs of biotin and avidin, complementary DNA pairs, and antigen-antibody pairs. |
| The endogeneous biotin was blocked by adding an excess amount of avidin followed by washing and addition of free biotin. |
| Groundwater, too, is protected from contamination because avidin is a biodegradable protein. |
| The latter is due to the affinity of the egg white protein, avidin, for biotin preventing intestinal absorption of the biotin. |
| This is because egg white contains a specific protein, avidin, that combines with biotin and thus prevents its absorption. |
| By cooking eggs, for example, you detoxify avidin, an egg-white protein that destroys biotin. |
