AC MF_01255; DC Protein; auto TR HAMAP; MF_01255; -; 1; level=0 XX Names: Ectoine_synth XX ID ECTC DE RecName: Full=L-ectoine synthase; DE EC=4.2.1.108; DE AltName: Full=N-acetyldiaminobutyrate dehydratase; GN Name=ectC; XX CC -!- FUNCTION: Catalyzes the circularization of gamma-N-acetyl-alpha,gamma- CC diaminobutyric acid (ADABA) to ectoine (1,4,5,6-tetrahydro-2-methyl-4- CC pyrimidine carboxylic acid), which is an excellent osmoprotectant. CC -!- CATALYTIC ACTIVITY: CC Reaction=(2S)-4-acetamido-2-aminobutanoate = H2O + L-ectoine; CC Xref=Rhea:RHEA:17281, ChEBI:CHEBI:15377, ChEBI:CHEBI:58515, CC ChEBI:CHEBI:58929; EC=4.2.1.108; CC -!- PATHWAY: Amine and polyamine biosynthesis; ectoine biosynthesis; L- CC ectoine from L-aspartate 4-semialdehyde: step 3/3. CC -!- SIMILARITY: Belongs to the ectoine synthase family. XX DR Pfam; PF06339; Ectoine_synth; 1; trigger=no XX KW Lyase XX GO GO:0016836; F:hydro-lyase activity GO GO:0019491; P:ectoine biosynthetic process XX FT None XX Size: 128-138; Related: None; Template: O52251; O06061; Q9AP33; Scope: Bacteria Fusion: Nter: None Cter: None Duplicate: None Plasmid: None Comments: This protein is mainly found in halophilic bacteria, which synthesize ectoine as a good osmoprotectant. XX # Revision 1.19 2019/11/19 //