For most human proteins, there are no small molecules known to bind them chemically (so-called "ligands"). Ligands frequently represent important starting points for drug development but this knowledge gap critically hampers ...
Biochemistry
7 hours ago
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19
Researchers at Karolinska Institutet have developed a web-based platform that offers an unprecedented view of the human body at the cellular level. The aim is to create an invaluable resource for researchers worldwide to ...
Cell & Microbiology
8 hours ago
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2
Two independent research teams have successfully regenerated mouse brain circuits in mice using neurons grown from rat stem cells. Both studies, published April 25 in the journal Cell, offer valuable insights into how brain ...
Cell & Microbiology
10 hours ago
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17
The essential role played by a protein in the functioning of cells is revealed in new work from the laboratory of Université de Montréal medical professor Frédéric Charron, holder of the Canada Research Chair in Developmental ...
Cell & Microbiology
10 hours ago
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1
An unexpected discovery surprised a scientist at the Max Planck Institute for Intelligent Systems in Stuttgart: Nanometer-sized diamond particles, which were intended for a completely different purpose, shone brightly in ...
Bio & Medicine
10 hours ago
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15
The genus Musa, encompassing approximately 70 herbaceous species, is predominantly found in the tropical and subtropical regions of Asia and Oceania. This genus is renowned for being one of the most important food crops globally ...
Molecular & Computational biology
Apr 24, 2024
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1
In perennial woody plants, bud endodormancy is crucial for survival under adverse environmental conditions in winter, such as low temperature (LT) and dehydration stress. To break bud dormancy is essential for the resumption ...
Molecular & Computational biology
Apr 24, 2024
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1
Cells constantly navigate a dynamic environment, facing ever-changing conditions and challenges. But how do cells swiftly adapt to these environmental fluctuations?
Cell & Microbiology
Apr 24, 2024
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110
Transparent solar cells will transform the look of infrastructure by enabling many more surfaces to become solar panels. Now, materials called non-fullerene acceptors that can intrinsically generate charges when exposed to ...
Condensed Matter
Apr 24, 2024
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29
LMU researchers have developed a method to determine how reliably target proteins can be labeled using super-resolution fluorescence microscopy.
Molecular & Computational biology
Apr 24, 2024
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22
The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.
In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.
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