Avidin is a protein that’s bind Vitamin B7, .
The Avidin is produced in the ovary of some lay eggs animals, and it’s found in the white of the egg.
Structure
Avidin is a tetrameric protein, but here will be shown only two units of the whole structure just to simplify it.
The secondary structure of Each Avidin monomer combines (pink) and (blue).
The tertiary structure of each monomer is an 8 stranded antiparalle beta-barrel [1].
Structural highlights
Because of the curved structure of the protein, it’s easier to see where the N terminal is begins and the C terminal ends with .
| Amino Terminus |
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Carboxy Terminus |
