The linear sequence of amino acids within a protein is considered the primary structure of the protein. Proteins are built from a set of only twenty amino acids, each of which has a unique side chain.

Proteins have four levels of structure: primary (amino acid sequence), secondary (local folding patterns like alpha helices and beta sheets), tertiary (overall 3D shape), and quaternary (assembly of ...

Our brain's remarkable ability to form and store memories has long fascinated scientists, yet most of the microscopic ...

We are currently determining the crystal structure of the maize root Fd–FNR complex. Atomic coordinates have been deposited in the Protein Data Bank (accession codes 1GAW and 1GAQ for free FNR ...