The quaternary protein structure refers to the orientation and arrangement of subunits in proteins with multi-subunits. This is only relevant for proteins with multiple polypeptide chains.

Proteins are composed of one or more chains of amino acids, which are linked together by peptide bonds and folded into specific three-dimensional structures. Proteins have four levels of structure: ...

Membrane proteins are key components of living cells. They constitute one-third of the ORFs of virtually all genomes, perform crucial roles, and are targeted by a huge number of drugs. When ...

The structure of the membrane anchor domain of the bacterial autotransporter YadA is solved by a solid-state NMR spectroscopy approach using a uniformly 13C- and 15N-labeled microcrystalline sample.

So far, all examples of this type of bond have been identified using protein crystallography, where X-rays are used to image the folded protein structure. The NOS bond is found in many viral ...

So far, all examples of this type of bond have been identified using protein crystallography, where X-rays are used to image the folded protein structure. The NOS bond is found in many viral ...