Amino acids are small molecules that are the building blocks of proteins. Proteins serve as structural support inside the cell and they perform many vital chemical reactions. Each protein is a ...

In addition, chemical forces between a protein ... family also often have long stretches of similar amino acid sequences within their primary structure. These stretches have been conserved through ...

with the release of a water molecule. This process, known as condensation or dehydration synthesis, results in the formation of a linear chain of amino acids. The sequence of amino acids in a protein, ...

Samples contain all five nucleobases of DNA and RNA, supporting theory that asteroids may have seeded Earth with life's ...

This article was originally published with the title “ The Three-Dimensional Structure of a Protein Molecule ” in Scientific American Magazine Vol. 205 No. 6 (December 1961), p. 96 doi:10.1038 ...

The sequence of amino acids in the chain determines how the ... form attachments and interact with many other molecules and structures inside organisms. The shape of a protein determines what ...