RESEARCH: MEMBRANE TRANSPORT
FOLDING PROJECT #15000 PROFILE

Membrane transporters are proteins that help move stuff across cell membranes. This project looks at how they work by studying a specific transporter called PIN1. By understanding how different types of transporters function, we can learn more about how cells control what goes in and out.

A United Picture of Transporter Functions
Membrane transporters are an integral part of the cell and serve many roles across their involvement in the transport of ions, nutrients, neurotransmitters, and many drugs across cellular membranes.

There are three major classes of membrane transport proteins that facilitate the transport of various solutes.

These classes are Uniporters, which transport one solute across the membrane in one direction, Symporters, which transport two solutes across the membrane in the same direction, and Antiporters, which transfer two solutes in opposite directions across the membrane.

These classes follow different mechanisms of transport to move their solute(s) across the membrane.
Simulations for this project will be primarily focused on studying how structure, dynamics, and energetics account for the transport mechanism of the membrane transporter PIN1.

By evaluating the mechanisms of transport arising in transporters of different classes, we hope to further improve our understanding of the controlling mechanisms behind membrane transport.

Membrane transporters

Proteins embedded in cell membranes that facilitate the movement of molecules across the membrane.

Membrane transporters are crucial proteins found within cell membranes. They act like gatekeepers, selectively allowing specific molecules, such as ions, nutrients, and drugs, to pass through the membrane. This transport is essential for various cellular functions, including maintaining proper electrolyte balance, absorbing nutrients, and eliminating waste products.

Uniporters

Membrane transport proteins that move one solute across the membrane in one direction.

Uniporters are a type of membrane transporter that facilitates the movement of a single molecule or ion across the cell membrane. They work like one-way doors, allowing only one specific substance to pass through at a time.

Symporters

Membrane transport proteins that move two solutes across the membrane in the same direction.

Symporters are membrane transporters that work together to move two different molecules or ions across the cell membrane in the same direction. They act like a coordinated team, ensuring that both substances are transported efficiently.

Antiporters

Membrane transport proteins that transfer two solutes in opposite directions across the membrane.

Antiporters are membrane transporters that facilitate the exchange of one molecule or ion for another. They work like a trade mechanism, moving substances in opposite directions across the cell membrane.

PIN1

Phosphate-induced nucleoside transporter 1.

PIN1 is a specific type of membrane transporter protein involved in transporting phosphate molecules across the cell membrane. It plays a vital role in cellular processes that require phosphorus uptake and distribution.