RESEARCH: MEMBRANE TRANSPORT
FOLDING PROJECT #17937 PROFILE

The project relates to special proteins that move stuff across cell walls using energy from ions. These proteins are found everywhere and help treat diseases like cancer and diabetes. Studying them can teach us how different types of proteins work together.

Molecular basis of secondary active transporters. Secondary active membrane transporters are proteins that utilize ions to transport an assortment of molecules across cell membranes.

These proteins are found in all domains in life and surprisingly, despite vastly different structures, operate under the same mechanism by using an ion gradient to assist in small molecule transport.

Furthermore, many of these secondary active transporters are drug targets to treat diseases like cancer, diabetes, and neurological disorders.

The simulations in this project will allow us to understand a universal role of ion-coupling across different families of proteins.

Secondary active transporters

Proteins that use ion gradients to transport molecules across cell membranes.

Secondary active transporters are essential proteins found in all living organisms. They work by using the energy stored in an ion gradient (difference in electrical charge) across a cell membrane to move other molecules against their concentration gradient – meaning from an area of low concentration to an area of high concentration. This process is crucial for many cellular functions, including nutrient uptake, waste removal, and signal transduction. Many secondary active transporters are also targets for drug development, as they play roles in various diseases like cancer, diabetes, and neurological disorders.

Ion gradient

A difference in concentration of ions across a cell membrane.

An ion gradient refers to an uneven distribution of electrically charged atoms (ions) across a cell membrane. This difference in charge can be maintained by active transport processes, which use energy to move ions against their concentration gradient. Ion gradients are crucial for many cellular functions, including nerve impulse transmission, muscle contraction, and nutrient uptake.

Membrane Transport

The movement of molecules across cell membranes.

Membrane transport is the process by which substances move into and out of cells. This is essential for maintaining cellular homeostasis – keeping a stable internal environment. There are various types of membrane transport, including passive transport (movement without energy expenditure) and active transport (requiring energy). Membrane transport plays a crucial role in nutrient uptake, waste removal, signal transduction, and cell communication.

Simulations

Computer models used to mimic biological processes.

Simulations are powerful tools in computational biology, allowing scientists to model and study complex biological systems using computer programs. These simulations can be used to understand how molecules interact, predict protein structures, and explore the dynamics of cellular processes. Simulations have become increasingly important in drug discovery, disease modeling, and understanding fundamental biological mechanisms.