{Reference Type}: Journal Article {Title}: Methodological approaches to studying phase separation and HIV-1 replication: Current and future perspectives. {Author}: Mouland AJ;Chau BA;Uversky VN; {Journal}: Methods {Volume}: 229 {Issue}: 0 {Year}: 2024 Sep 15 {Factor}: 4.647 {DOI}: 10.1016/j.ymeth.2024.07.002 {Abstract}: This article reviews tried-and-tested methodologies that have been employed in the first studies on phase separating properties of structural, RNA-binding and catalytic proteins of HIV-1. These are described here to stimulate interest for any who may want to initiate similar studies on virus-mediated liquid-liquid phase separation. Such studies serve to better understand the life cycle and pathogenesis of viruses and open the door to new therapeutics.