3.5.1.105 evolution chitin deacetylases and chitooligosaccharides deacetylases [EC 3.5.1.105 (CODa)]. ChDas and CODa are a group of enzymes catalyzing the hydrolysis of acetamido groups of N-acetyl-D-glucosamine residues in chitin, chitosan and chitooligosaccharides, respectively. Both of these groups of enzymes are classified in the carbohydrate esterase family 4 (CE4) in the CAZY database -, 753650 3.5.1.105 evolution chitin oligosaccharide deacetylase (COD) typically comprise two carbohydrate-binding domains (CBDs) and one polysaccharide deacetylase domain. In contrast, Shewanella baltica ATCC BAA-1091 COD (Sb-COD) has only one CBD, yet exhibits chitin-binding properties and substrate specificities similar to those of other CODs -, 753032 3.5.1.105 evolution the enzyme belongs to carbohydrate esterase (CE) family 14 -, 745652 3.5.1.105 evolution the enzyme belongs to the carbohydrate esterase family 14 -, 752555 3.5.1.105 evolution the enzyme belongs to the carbohydrate esterase family 4. Amino acid residues that officiate as the metal ion-binding triad and general acid–base catalysts are generally conserved in other Zn-dependent deacetylases -, 733875 3.5.1.105 evolution the enzyme is an evolutionarily conserved protein that belongs to the the YdjC family of proteins -, 734074 3.5.1.105 evolution YDJC belongs to the YDJC superfamily and exerts deacetylase activity 754966 3.5.1.105 malfunction gene silencing of YDJC suppresses sphingosylphosphorylcholine (SPC)-induced events. YdjC overexpression induces the SPC-induced events. YdjC deacetylase dominant negative mutant (YDJCD13A) does not induce SPC-induced events. YDJC siRNA reduces ERK activation and overexpression of YDJC induces ERK activation. The siRNA of ERK1 or ERK2 suppresses YDJC-induced phosphorylation and reorganization of keratin 8 (K8), and migration and invasion 754966 3.5.1.105 metabolism deacetylated chitobiose and chitotriose provide the induction signal necessary for the activation of the ChbR regulator -, 734074 3.5.1.105 metabolism diacetylchitobiose deacetylase works in the chitin degradation pathway in combination with glucosaminidase to hydrolyze diacetylchitobiose (GlcNAc2) to glucosamine (GlcN). First, the N-acetyl group of GlcNAc2 is catalyzed by Dac from the nonreducing end residue N-acetylglucosamine (GlcNAc) of GlcNAc2 and generates the product GlcN-GlcNAc, the product (GlcNGlcNAc) is then hydrolyzed by glucosaminidase following degradation into GlcN and GlcNAc. Finally, the resulting monomer GlcNAc is catalyzed by Dac to generate GlcN -, 752555