LeBron James' return to NBA action is looming for the Los Angeles Lakers. It may happen Tuesday night, with James listed as questionable, or it may happen very soon. Either way, it's a big deal. The ...

Restriction factors are anti-viral proteins that are produced in the host and counteract or 'restrict' viral replication. These proteins are considered a first line of defence against viruses. A ...

Multienzyme complexes are stable assemblies of more than one enzyme, generally involved in sequential catalytic transformations. These are distinct from a multienzyme polypeptide, in which multiple ...