背景介绍 GRK5 is a member of the guanine nucleotide-binding protein (G protein)-coupled receptor kinase subfamily of the Ser/Thr protein kinase family (1). It phosphorylates the activated forms of G protein-coupled receptors thus initiating their deactivation. GRK5 plays a role in regulating the motility of polymorphonuclear leukocytes (PMNs). Desensitization of G protein-coupled receptors regulates the number of polymorphonuclear leukocytes (PMNs), as well as their motility and ability to stop upon contact with pathogens or target cells, and this desensitization is mediated by GRK5 (2). 产品介绍 Human GRK5, also known as GPRK5 (GenBank Accession No. NM_005308), full length, with N-terminal GST tag, MW ~95 kDa, expressed in Sf9 insect cells via a baculovirus expression system.