In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a "fairy tale," rooted in cultural beliefs about ...
Social Sciences
Oct 1, 2023
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41
Protein phosphorylation is a major posttranslational modification carried out by protein kinases that constitute an integral part of complex signaling networks in eukaryotes. Casein kinase 1 (CK1) is a conserved serine/threonine ...
Plants & Animals
Sep 28, 2023
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19
Gigatons of greenhouse gas are trapped under the seafloor, and that's a good thing. Around the coasts of the continents, where slopes sink down into the sea, tiny cages of ice trap methane gas, preventing it from escaping ...
Astrobiology
Sep 26, 2023
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50
MicroRNAs are small molecules that regulate gene activity by binding to and destroying RNAs produced by the genes. More than 60% of all human genes are estimated to be regulated by microRNAs; therefore, it is not surprising ...
Cell & Microbiology
Sep 21, 2023
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23
Within the intricate molecular landscape inside of a cell, the orchestration of proteins demands precise control to avoid disease. While some proteins must be synthesized at specific times, others require timely breakdown ...
Cell & Microbiology
Sep 21, 2023
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32
The cellular protein heparanase plays an important role in allowing diseases, including viruses and cancers, to spread within our bodies. For this reason, researchers investigating a wide range of diseases are eager to find ...
Biochemistry
Sep 11, 2023
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25
Organosulfur compounds are organic molecules that contain one or more sulfur atoms bonded to carbon atoms. They not only play fundamental roles in biological processes but also have wide applications in many industries, such ...
Biochemistry
Sep 7, 2023
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18
In April of this year, Spanish athlete Beatriz Flamini emerged into the light after a 500-day stay in a cave. Her descent underground is probably the longest undertaken by a long stretch. Flamini says she lost all sense of ...
Molecular & Computational biology
Aug 31, 2023
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36
S clusters, which are a part of Fe–S proteins, are found across all forms of life. They play a significant role as biological cofactors—helper molecules that assist these proteins in different biochemical transformations—that ...
Biochemistry
Aug 29, 2023
0
16
Cells change dynamically over time during embryonic development and aging, and in diseases such as inflammation and cancer. Some populations expand, others decline. The ability to track these changes over time, without killing ...
Cell & Microbiology
Aug 28, 2023
0
21
