Tags: Protein.
In molecular biology SARS coronavirus X4 like protein domain is commonly shortened to SARS-X4. This protein domain is only found in viruses. It causes SARS Severe acute respiratory syndrome in humans which causes high rates of death and mortality. It is produced by a type of virus named the coronavirus (SARS-CoV). X4 is the protein domain which is a unique type I transmembrane protein.
