RESEARCH: CANCER
FOLDING PROJECT #17774 PROFILE

This project studies how proteins move molecules across cell membranes using ion power. These proteins are found everywhere and help treat diseases like cancer and diabetes. Simulations will reveal how these proteins work, no matter their shape.

Projects 17745-17750 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.

Transporters

Proteins that move molecules across cell membranes.

Transporters are essential proteins that help cells move various substances in and out. They use energy or gradients to carry molecules like nutrients, ions, and waste products. These proteins are crucial for many cellular processes, including nutrient uptake, signaling, and detoxification. Dysfunctional transporters can lead to various diseases.

Secondary Active Transporters

Membrane proteins that use an ion gradient to transport molecules.

Secondary active transporters are a specific type of membrane protein that rely on an existing ion gradient to move other molecules across the cell membrane. They couple the movement of one molecule (usually an ion) down its concentration gradient with the movement of another molecule (the solute) against its concentration gradient. This process is vital for various cellular functions, including nutrient uptake, waste removal, and signal transduction.

Ion Gradient

A difference in ion concentration across a membrane.

An ion gradient refers to the unequal distribution of charged ions (like sodium, potassium, or calcium) across a cell membrane. This difference in concentration creates an electrical potential, which is essential for many cellular processes, including nerve impulse transmission and muscle contraction. Secondary active transporters utilize this gradient to drive the transport of other molecules.

Drug Targets

Molecules or pathways that are potential sites for drug action.

Drug targets are specific molecules or biological pathways involved in disease processes. Scientists aim to develop drugs that can interact with these targets and modulate their activity. By interfering with a target's function, a drug can potentially treat or prevent a disease.

Simulations

Computer models of biological processes.

Simulations are computer-based representations of real-world phenomena. In biology, simulations can model complex processes like protein interactions, cell signaling pathways, or drug effects. These virtual experiments allow researchers to test hypotheses, explore different scenarios, and gain insights into biological systems without conducting physical experiments.