Every system has its waste disposal system. The cell organelles known as "peroxisomes" dispose of toxic substances and fats in the human body, among other things, and, in doing so, they prevent serious illnesses. The "Pex" ...
Biotechnology
Sep 26, 2023
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Maintaining the structure of intracellular membranes is essential for preserving normal cellular function. New research by a team of biochemists at Umeå University identifies a strategy employed by cells to detect and repair ...
Cell & Microbiology
Sep 20, 2023
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Scientists have found that extracellular calcium mediates the activation of a membrane protein that waves the flag signaling cell death.
Cell & Microbiology
Sep 14, 2023
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Membrane proteins play a pivotal role in various cellular functions and are key targets for pharmaceutical interventions. In fact, approximately 60% of drugs currently available on the market target these specific proteins. ...
Molecular & Computational biology
Sep 7, 2023
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1
In a study published in Nature Plants, a research team led by Prof. Chao Daiyin from the Center of Excellence for Molecular Plant Sciences of the Chinese Academy of Sciences identified a novel protein family in plants named ...
Molecular & Computational biology
Sep 4, 2023
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23
Through a nuanced balance of electrical and hydrophobic forces, biological molecules self-assemble into the large functional structures that maintain life's vital functions. Understanding how proteins self-assemble requires ...
Cell & Microbiology
Sep 1, 2023
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10
Although the COVID-19 pandemic was the first time most of humanity learned of the now infamous disease, the family of coronaviruses was first identified in the mid-1960s. In a new study, molecular biologist Steven Van Doren, ...
Molecular & Computational biology
Aug 31, 2023
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42
Examples of infections tied to gram-negative bacteria include pneumonia, bloodstream infections, wound-site infections and meningitis, according to the Centers for Disease Control and Prevention.
Biotechnology
Aug 21, 2023
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15
The ability to sense mechanical stimuli, like touch or blood pressure, is essential to physiological processes in humans and across the animal kingdom. In a new study, Scripps Research scientists show how the sensory ion ...
Cell & Microbiology
Aug 16, 2023
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497
In a compost heap, the nematode Caenorhabditis elegans finds a richly laid table: at a length of just one millimeter, the worm feeds on bacteria that decompose organic material. It is essential that the animal avoids sunlight—and ...
Biotechnology
Aug 2, 2023
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4
A membrane protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle. More than half of all proteins interact with membranes.
Biological membranes consist of a phospholipid bilayer and a variety of proteins that accomplish vital biological functions. Structural proteins are attached to microfilaments in the cytoskeleton which ensures stability of the cell. Cell recognition proteins allow cells to identify each other and interact. Such proteins are involved in immune response, for example. Membrane enzymes produce a variety of substances essential for cell function. Membrane receptor proteins serve as connection between the cell's internal and external environments. Finally, transport proteins play an important role in the maintenance of concentrations of ions. These transport proteins come in two forms: carrier proteins and channel proteins. Carrier proteins are involved in using the energy released from ATP being broken down to facilitate active transport and ion exchange. These processes ensure that useful substances are able to enter the cell and that toxic substances are pumped out of the cell.
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