RNA molecules, made from DNA, are best known for their role in protein production. MicroRNAs (miRNAs), however, are short (~22) nucleotide RNA sequences found in plants and animals that do not encode proteins but act in gene ...
Cell & Microbiology
Apr 25, 2013
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Small stretches of DNA in the human genome are known as "pseudogenes" because, while their sequences are nearly identical to those of various genes, they have long been thought to be non-coding "junk" DNA.
Cell & Microbiology
Feb 24, 2013
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(Phys.org)—A simple, precise and inexpensive method for cutting DNA to insert genes into human cells could transform genetic medicine, making routine what now are expensive, complicated and rare procedures for replacing ...
Biotechnology
Jan 8, 2013
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(Phys.org)—Researchers at the University of Cincinnati (UC) report that they have solved the crystal structure of a protein involved in holding bacterial cells together in a biofilm, a major development in their exploration ...
Biochemistry
Jan 2, 2013
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For humans to grow and to replace and heal damaged tissues, the body's cells must continually reproduce, a process known as "cell division," by which one cell becomes two, two become four, and so on. A key question of biomedical ...
Biotechnology
Dec 20, 2012
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(Phys.org)—Researchers at Michigan State University have discovered a protein that does its best work with one foot in the grave.
Biochemistry
Dec 12, 2012
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Bacteria have a bad rap as agents of disease, but scientists are increasingly discovering their many benefits, such as maintaining a healthy gut.
Cell & Microbiology
Oct 24, 2012
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(Phys.org)—To remove waste from cells, a class of membrane-sculpting proteins create vesicles—molecular trash bags—that carry old and damaged proteins from the surface of cellular compartments into internal recycling ...
Cell & Microbiology
Oct 23, 2012
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In a critical breakthrough in unraveling how molecular "motors" ferry proteins and nutrients through cells, Harvard scientists have produced high-resolution images that show how the "foot" of dynein—one of the most complex, ...
Cell & Microbiology
Oct 23, 2012
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(Phys.org) -- In a new study, UT Dallas researchers outline how they used fluorescent molecules to "tag" DNA and monitor a process called DNA looping, a natural biological mechanism involved in rearranging genetic material ...
Cell & Microbiology
Aug 13, 2012
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