ABC transporter

ABC transporters, or ATP-binding cassette transporters, are proteins found in cell membranes that help move various molecules in and out of cells. They use energy from a molecule called ATP to actively transport substances, such as nutrients, toxins, and drugs, against their concentration gradient. This process is essential for maintaining cell health, removing waste, and controlling what enters the cell. ABC transporters are important in processes like drug resistance and the functioning of the immune system. They are a vital part of cellular machinery, ensuring proper material balance and protection.