The host perinuclear region is the host cytoplasmic region just around the host nucleus. Note: This location is defined for viral proteins that appear in the perinuclear region of infected host cells
Virulence effector that plays a role in hijacking the host vesicular trafficking by recruiting the small guanosine triphosphatase (GTPase) Rab1 to the cytosolic face of the Legionella-containing vacuole (LCVs). Acts as an adenosine monophosphate-protein hydrolase (de-AMPylase) by mediating the hydrolysis of adenosine 5'-monophosphate (AMP) to 'Tyr-77' of host RAB1B, thereby releasing RAB1B from bacterial phagosomes and rendering RAB1B accessible for inactivation by LepB. De- AMPylation of RAB1B cannot take place when LidA is bound to RAB1B. {Experimental EvidencePubMed:21680813, Experimental EvidencePubMed:21734656, Experimental EvidencePubMed:22228731}.