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Zinc Transporter Yiip

Electrostatics

Electrostatic Interactions

Charge distribution along the exterior surface of the protein is primarily neutral for the trans-membrane domains, but transitions to positive near the location of the charge interlock and interior side of the cell membrane. This positive section is characteristic of trans-membrane proteins as a means of achieving proper orientation. Binding sites A, B, and C, as well as the C-terminus domains of both monomers, all possess a high negative charge relative to the other charges present, facilitating the binding and releasing of Zn²⁺ ions. The two C-terminus domains are held together by the charge interlock and hydrophobic interactions of the trans-membrane domains despite their electrostatic repulsion. Upon the release of Zn²⁺ ions, the C-terminus domains undergo electronegativity alterations, forcing the two domains apart.

Conformation Changes

This is a sample scene created with SAT to color by Group, and another to make a transparent representation of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes.

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