AC MF_02053; DC Protein; auto TR HAMAP; MF_02053; -; 1; level=0 XX Names: LsrK XX ID LSRK DE RecName: Full=Autoinducer-2 kinase; DE Short=AI-2 kinase; DE EC=2.7.1.189; GN Name=lsrK; XX CC -!- FUNCTION: Catalyzes the phosphorylation of autoinducer-2 (AI-2) to CC phospho-AI-2, which subsequently inactivates the transcriptional CC regulator LsrR and leads to the transcription of the lsr operon. CC Phosphorylates the ring-open form of (S)-4,5-dihydroxypentane-2,3-dione CC (DPD), which is the precursor to all AI-2 signaling molecules, at the CC C5 position. CC -!- CATALYTIC ACTIVITY: CC Reaction=(S)-4,5-dihydroxypentane-2,3-dione + ATP = (2S)-2-hydroxy-3,4- CC dioxopentyl phosphate + ADP + H(+); Xref=Rhea:RHEA:15377, CC ChEBI:CHEBI:15378, ChEBI:CHEBI:29484, ChEBI:CHEBI:30616, CC ChEBI:CHEBI:71677, ChEBI:CHEBI:456216; EC=2.7.1.189; CC -!- SUBCELLULAR LOCATION: Cytoplasm. CC -!- SIMILARITY: Belongs to the FGGY kinase family. XX DR Pfam; PF02782; FGGY_C; 1; trigger=no DR Pfam; PF00370; FGGY_N; 1; trigger=no DR PIRSF; PIRSF000538; GlpK; 1; trigger=no XX KW Cytoplasm KW Kinase KW Transferase XX GO GO:0071518; F:autoinducer-2 kinase activity GO GO:0005737; C:cytoplasm XX Size: 515-545; Related: None; Template: Q8ZKQ6; P77432; Scope: Bacteria; Enterobacterales Fusion: Nter: None Cter: None Duplicate: None Plasmid: None Comments: None XX # Revision 1.5 2020/05/05 //