New! Sign up for our free email newsletter.
Reference Terms
from Wikipedia, the free encyclopedia


Proteins are large organic compounds made of amino acids arranged in a linear chain and joined together between the carboxyl atom of one amino acid and the amine nitrogen of another.

Note:   The above text is excerpted from the Wikipedia article "Protein", which has been released under the GNU Free Documentation License.
Related Stories

Plants & Animals News
February 20, 2024

Babies playfully tease others as young as eight months of age. Since language is not required for this behavior, similar kinds of playful teasing might be present in non-human animals. Now cognitive biologists and primatologists have documented ...
More time stranded on land means greater risk of starvation for polar bears, a new study indicates. During three summer weeks, 20 polar bears closely observed by scientists tried different strategies to maintain energy reserves, including resting, ...
A new species of pterosaur from specimens found on the Isle of Skye, Scotland, has been ...
We often think of fish as carefree swimmers in the ocean, reacting to the world around them without much forethought. However, new research suggests that our marine cousins may be more cognizant than we credit them for. Fish may be counting vertical ...
Latest Headlines
updated 12:56 pm ET