3.5.99.7 1-amino-2-vinylcyclopropane-1-carboxylic acid + H2O - Pseudomonas sp. ? - ? 433088 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Alcaligenes faecalis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Arabidopsis thaliana 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Arabidopsis thaliana 2-oxobutanoate + NH3 - ir 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter cloacae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas fluorescens 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas aeruginosa 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas putida 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Acinetobacter calcoaceticus 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Klebsiella pneumoniae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Solanum lycopersicum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Acinetobacter sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Agrobacterium tumefaciens 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Penicillium citrinum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Citrobacter sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Citrobacter koseri 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Flavobacterium sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Klebsiella sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Achromobacter xylosoxidans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas chlororaphis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Populus tremula 2-oxobutanoate + NH3 - ir 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Stenotrophomonas maltophilia 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Cyberlindnera saturnus 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Klebsiella oxytoca 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Trinickia caryophylli 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Acinetobacter baumannii 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Rhizobium spp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Rhizobium leguminosarum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pluralibacter gergoviae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter asburiae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Serratia proteamaculans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Chryseobacterium sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium oryzae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Azospirillum lipoferum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia phenoliruptrix 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia fungorum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia graminis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia terricola 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia phytofirmans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Burkholderia stabilis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Burkholderia cenocepacia 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Burkholderia cepacia 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia kururiensis subsp. kururiensis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Trichoderma asperellum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia caledonica 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas entomophila 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia unamae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium radiotolerans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia xenovorans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia silvatlantica 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia phymatum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia tuberum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Burkholderia vietnamiensis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia caribensis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter cancerogenus 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium nodulans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bradyrhizobium japonicum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Klebsiella variicola 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter ludwigii 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Phyllobacterium brassicacearum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Francisella tularensis subsp. holarctica 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Amycolatopsis methanolica 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Empedobacter brevis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pokkaliibacter plantistimulans 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Variovorax guangxiensis 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Atlantibacter hermannii 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Chryseobacterium jejuense 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Acinetobacter bereziniae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O enzyme enhances nodulation of Pisum sativum, likely by modulating ethylene levels in the plant roots during the early stages of nodule development Rhizobium leguminosarum 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme is thought to be intimately involved in the mechanism that the bacterium uses to promote root elongation in developing Canola seedlings. The enzyme is inducible by 1-aminocyclopropane-1-carboxylate and contains a basal level of constitutively expressed enzyme activity Pseudomonas putida 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O effective induction by 1-aminocyclopropane-1-carboxylate and 2-aminobutanoate Pseudomonas sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme catalyzes the hydrolytic cleavage of 1-aminocyclopropane-1-carboxylate, the immediate precursor of ethylene, and is therefore an inhibitor of ethylene biosynthesis Pseudomonas sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the plant growth-promoting rhizobacteria stimulate plant growth through the activity of 1-aminocyclopropane-1-carboxylate deaminase Enterobacter cloacae 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O a precursor for ethylene production in plants Pseudomonas fluorescens 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O a precursor for ethylene production in plants Pseudomonas putida 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the pyridoxal 5'-phosphate-dependent enzyme cleaves the cyclopropane ring of ACC, to give 2-oxobutyric acid and ammonia as products. The pKa of the conserved active site residue, Tyr294, is lowered by a hydrogen bonding interaction with a second conserved residue, Tyr268. This allows Tyr294 to deprotonate the incoming amino group of ACC to initiate the aldimine exchange reaction between ACC and the pyridoxal 5'-phosphate coenzyme and also likely helps to activate Tyr294 for a role as a nucleophile to attack and cleave the cyclopropane ring of the substrate. The Calpha-Cbeta bond cleavage step in the chemical mechanism is at least partially rate-limiting under kcat/Km conditions and is likely preceded in the mechanism by a partially rate-limiting step involving the conversion of a stable gem-diamine intermediate into a reactive external aldimine intermediate that is poised for cyclopropane ring cleavage Pseudomonas sp. 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O high substrate specificity of enzyme ACCD Amycolatopsis methanolica 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia terricola LMG 20594 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus ATCC 14579 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Variovorax guangxiensis DSM 27352 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas fluorescens J108 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Burkholderia cepacia ATCC 25416 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter cancerogenus MSA2 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia caribensis MWAP64 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Enterobacter cloacae MSA1 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia phytofirmans PsJN 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Francisella tularensis subsp. holarctica OSU18 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bradyrhizobium japonicum USDA 110 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus NRRL B-3711 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium oryzae CBMB20 / DSM 18207 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pokkaliibacter plantistimulans MCC 2992 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Azospirillum lipoferum AZm5 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia graminis C4D1 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas fluorescens Pf1 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium radiotolerans JCM 2831 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus NCIMB 9373 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia fungorum LMG 16225 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas putida GR12-2 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme is thought to be intimately involved in the mechanism that the bacterium uses to promote root elongation in developing Canola seedlings. The enzyme is inducible by 1-aminocyclopropane-1-carboxylate and contains a basal level of constitutively expressed enzyme activity Pseudomonas putida GR12-2 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Burkholderia stabilis LMG 14294 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Agrobacterium tumefaciens YH-2 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia caledonica LMG 19076 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas putida UW4 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pluralibacter gergoviae J107 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas entomophila PS-PJH 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus DSM 31 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Variovorax guangxiensis ACCC 05911 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia phymatum STM815 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pokkaliibacter plantistimulans 228 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium radiotolerans COLR1 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pokkaliibacter plantistimulans DSM 28732 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus NBRC 15305 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Trinickia caryophylli LMG 2155 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pokkaliibacter plantistimulans L1E11 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Trichoderma asperellum T203 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia tuberum STM678 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas sp. 3F2 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme catalyzes the hydrolytic cleavage of 1-aminocyclopropane-1-carboxylate, the immediate precursor of ethylene, and is therefore an inhibitor of ethylene biosynthesis Pseudomonas sp. 3F2 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium nodulans ORS 2060 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Amycolatopsis methanolica 239 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O high substrate specificity of enzyme ACCD Amycolatopsis methanolica 239 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Bacillus cereus JCM 2152 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium sp. WP1 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Empedobacter brevis ATCC 43319 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas sp. ACP 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the pyridoxal 5'-phosphate-dependent enzyme cleaves the cyclopropane ring of ACC, to give 2-oxobutyric acid and ammonia as products. The pKa of the conserved active site residue, Tyr294, is lowered by a hydrogen bonding interaction with a second conserved residue, Tyr268. This allows Tyr294 to deprotonate the incoming amino group of ACC to initiate the aldimine exchange reaction between ACC and the pyridoxal 5'-phosphate coenzyme and also likely helps to activate Tyr294 for a role as a nucleophile to attack and cleave the cyclopropane ring of the substrate. The Calpha-Cbeta bond cleavage step in the chemical mechanism is at least partially rate-limiting under kcat/Km conditions and is likely preceded in the mechanism by a partially rate-limiting step involving the conversion of a stable gem-diamine intermediate into a reactive external aldimine intermediate that is poised for cyclopropane ring cleavage Pseudomonas sp. ACP 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pokkaliibacter plantistimulans L1E4 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Variovorax guangxiensis GXGD002 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Paraburkholderia phenoliruptrix LMG 22037 2-oxobutanoate + NH3 - ? 363215 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas fluorescens 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas sp. 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas putida 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas brassicacearum 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium oryzae 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Azospirillum lipoferum 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O ACC deaminase activity is an important trait of plant growth-promoting rhizobacteria, PGPR, that stimulates root growth in infected plants, e.g. in soil-grown tomato Lycopersicon esculentum cv. Ailsa Craig. All the Pseudomonas brassicacearum strains studied cause pith necrosis when stems or fruits are inoculated with a bacterial suspension, as does the causal organism of this disease Pseudomonas corrugata strain 176, but the non-pathogenic strain Pseudomonas sp. Dp2 does not Pseudomonas brassicacearum 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O deamination of the ethylene precursor in plants, regulation of enzyme activity involving the lrp-like leucine-responsive regulatory gene, called acdR, overview Azospirillum lipoferum 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme converts the precursor of ethylene production to 2-oxobutanoate and abolishes the response to ethylene in etiolated pea seedlings, which occurs after application of 1-aminocyclopropane-1-carboxylate in absence of the ACC deaminase, overview Pseudomonas fluorescens 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme converts the precursor of ethylene production to 2-oxobutanoate and abolishes the response to ethylene in etiolated pea seedlings, which occurs after application of 1-aminocyclopropane-1-carboxylate in absence of the ACC deaminase, overview Pseudomonas putida 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the substrate is the direct precursor of ethylene, which is a key component in regulation of root elongation in plants, e.g. Brassica campestris, inoculation of ACC deaminase-containing Methylobacterium oryzae sequesters 1-aminocyclopropane-1-carboxylate exuded from roots. The inhibitory actions of exogenous additions of auxins cannot be ameliorated by bacterial inoculation that reduces ethylene concentration in canola seedlings, overview Methylobacterium oryzae 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas fluorescens AM3 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the enzyme converts the precursor of ethylene production to 2-oxobutanoate and abolishes the response to ethylene in etiolated pea seedlings, which occurs after application of 1-aminocyclopropane-1-carboxylate in absence of the ACC deaminase, overview Pseudomonas fluorescens AM3 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Methylobacterium oryzae CBMB20 / DSM 18207 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O the substrate is the direct precursor of ethylene, which is a key component in regulation of root elongation in plants, e.g. Brassica campestris, inoculation of ACC deaminase-containing Methylobacterium oryzae sequesters 1-aminocyclopropane-1-carboxylate exuded from roots. The inhibitory actions of exogenous additions of auxins cannot be ameliorated by bacterial inoculation that reduces ethylene concentration in canola seedlings, overview Methylobacterium oryzae CBMB20 / DSM 18207 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Azospirillum lipoferum 4B 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O deamination of the ethylene precursor in plants, regulation of enzyme activity involving the lrp-like leucine-responsive regulatory gene, called acdR, overview Azospirillum lipoferum 4B 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas sp. ACP 2-oxobutyrate + NH3 - ? 394610 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O ACC deaminase-producing bacteria play an important role in the alleviation of different types of stress in plants, including the effect of heavy metals Pseudomonas putida alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O ACC is the immediate precursor of the plant hormone ethylene, an important mediator of plant growth and development Pseudomonas putida alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O activity of the mutants, immediate precursor of ethylene in plants Pseudomonas putida alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O lowering the phytohormone ethylene levels in plants Pseudomonas putida alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O ACC is the immediate precursor of the plant hormone ethylene, an important mediator of plant growth and development Pseudomonas putida UW4 alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O activity of the mutants, immediate precursor of ethylene in plants Pseudomonas putida UW4 alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 1-aminocyclopropane-1-carboxylate + H2O lowering the phytohormone ethylene levels in plants Pseudomonas putida UW4 AcdS+ alpha-ketobutyrate + NH3 - ? 398622 3.5.99.7 2-vinyl-1-aminocyclopropane-1-carboxylate + H2O - Pseudomonas sp. 2-keto-5-hexenoate + NH3 - ? 363216 3.5.99.7 5-nitroanthranilate + H2O - Escherichia coli 5-nitrosalicylate + NH3 - ? 407070 3.5.99.7 beta,beta-dichloro-D-alanine + H2O - Pseudomonas sp. ? - ? 433502 3.5.99.7 beta,beta-difluoro-D-alanine + H2O - Pseudomonas sp. ? - ? 433503 3.5.99.7 beta-chloro-D-alanine + H2O - Pseudomonas sp. ? - ? 433507 3.5.99.7 beta-fluoro-D-alanine + H2O - Pseudomonas sp. ? - ? 433508 3.5.99.7 coronamic acid + H2O D-coronamic acid Pseudomonas sp. 2-oxobutanoate + NH3 - ? 363217 3.5.99.7 coronamic acid + H2O DL-coronamic acid Cyberlindnera saturnus 2-oxobutanoate + NH3 - ? 363217 3.5.99.7 coronamic acid + H2O l-coronamic acid and DL-allocoronamic acid are inactive as substrates Pseudomonas sp. 2-oxobutanoate + NH3 - ? 363217 3.5.99.7 D-cysteine + H2O - Pseudomonas putida sulfide + NH3 + pyruvate - ? 363500 3.5.99.7 D-cysteine + H2O - Pseudomonas putida UW4 sulfide + NH3 + pyruvate - ? 363500 3.5.99.7 D-cystine + H2O - Arabidopsis thaliana ? - ? 363503 3.5.99.7 D-cystine + H2O - Cyberlindnera saturnus ? - ? 363503 3.5.99.7 D-cystine + H2O - Methylobacterium radiotolerans ? - ? 363503 3.5.99.7 D-cystine + H2O - Pseudomonas putida ? - ? 363503 3.5.99.7 D-cystine + H2O - Methylobacterium nodulans ? - ? 363503 3.5.99.7 D-cystine + H2O - Pseudomonas putida UW4 ? - ? 363503 3.5.99.7 D-erythro-2-amino-3-chlorobutyrate + H2O - Pseudomonas sp. ? - ? 433605 3.5.99.7 D-Ser + H2O - Cyberlindnera saturnus ? - ? 363218 3.5.99.7 D-serine + H2O - Pseudomonas sp. ? - ? 368219 3.5.99.7 D-serine + H2O - Penicillium citrinum ? - ? 368219 3.5.99.7 D-serine + H2O - Cyberlindnera saturnus ? - ? 368219 3.5.99.7 D-serine + H2O - Bradyrhizobium japonicum ? - ? 368219 3.5.99.7 D-serine + H2O - Bradyrhizobium japonicum USDA 110 ? - ? 368219 3.5.99.7 D-threo-2-amino-3-fluorobutyrate + H2O - Pseudomonas sp. ? - ? 433617 3.5.99.7 D-vinylglycine + H2O - Pseudomonas sp. ? - ? 433619 3.5.99.7 DL-coronamic acid + H2O - Pseudomonas sp. ? - ? 433650 3.5.99.7 DL-coronamic acid + H2O - Penicillium citrinum ? - ? 433650 3.5.99.7 DL-coronamic acid + H2O - Cyberlindnera saturnus ? - ? 433650 3.5.99.7 L-cystine + H2O - Methylobacterium radiotolerans ? - ? 409646 3.5.99.7 L-cystine + H2O - Methylobacterium nodulans ? - ? 409646 3.5.99.7 L-serine + H2O - Penicillium citrinum ? - ? 368218 3.5.99.7 additional information the enzyme improves the growth of canola plants after infection with Pseudomonas putida strain UW4 conferring salt tolerance to the plants, overview Pseudomonas putida ? - ? 89 3.5.99.7 additional information ACC deaminase stimulates root growth of plants in a coordinated fashion. Bacterial isolates with ACC deaminase activity reduce seed germination and root length in Canola cultivars under stress by treatment with the bacterial suspension. Pseudomonas fluorescens ? - ? 89 3.5.99.7 additional information ACC deaminase stimulates root growth of plants in a coordinated fashion. Bacterial isolates with ACC deaminase activity reduce seed germination and root length in Canola cultivars under stress by treatment with the bacterial suspension. Pseudomonas putida ? - ? 89 3.5.99.7 additional information ACC deaminase-producing bacteria are able to inhibit the effect of ethylene on the auxin transduction pathway Pseudomonas fluorescens ? - ? 89 3.5.99.7 additional information ACC deaminase-producing bacteria are able to inhibit the effect of ethylene on the auxin transduction pathway Pseudomonas putida ? - ? 89 3.5.99.7 additional information Canola plants inoculating with the HS-2 strain produce an increase in plant biomass as well as in nickeln uptake by shoots and roots. Pseudomonas putida ? - ? 89 3.5.99.7 additional information leucine-responsive regulatory protein is a potential regulator of ACC deaminase transcription Pseudomonas putida ? - ? 89 3.5.99.7 additional information mycorrhizal colonization, as well as arbuscule abundance, is significantly stimulated by Pseudomonas putida UW4 AcdS+, but not by the AcdS mutant, on cucumber. Pseudomonas putida ? - ? 89 3.5.99.7 additional information Site-directed mutagenesis shows that altering two amino acid residues at the same positions within the predicted active site serves to change the enzyme from D-cysteine desulfhydrase to deaminase from Pseudomonas putida UW4 the enzyme is converted into D-cysteine desulfhydrase. Pseudomonas putida ? - ? 89 3.5.99.7 additional information The presence of the ACC deaminase gene in the transgenic plant as well as the inoculation with Pseudomonas putida strain HS-2 improves the percentage emergence of the plants in the presence of the high nickel concentration (2.9 mg Ni/g dry soil) of this soil. Pseudomonas putida ? - ? 89 3.5.99.7 additional information 1-aminocyclopentane-1-carboxylate, L-homoserine, L-Thr, L-Tryp, L-Met, L-Tyr, L-Cys, and L-aminobutyrate are not a functional substrate Pseudomonas sp. ? - ? 89 3.5.99.7 additional information beta-chloro-D-alanine and O-acetyl-D-serine are not a functional substrate Cyberlindnera saturnus ? - ? 89 3.5.99.7 additional information beta-chloro-D-alanine is not a functional substrate Bradyrhizobium japonicum ? - ? 89 3.5.99.7 additional information DL-allocoronamic acid and dimethyl-1-aminocyclopropane-1-carboxylic acid are not a functional substrate Penicillium citrinum ? - ? 89 3.5.99.7 additional information 1H NMR spectroscopy for determination of reaction products and metabolites Escherichia coli ? - - 89 3.5.99.7 additional information ACC deaminase activity is detected by the following three methods: 2-oxobutyrate production in the coupled reaction with lactate dehydrogenase and NADH, 2-oxobutyrate production by the colorimetric method, and production of ammonium ions in the coupled reaction with glutamate dehydrogenase Amycolatopsis methanolica ? - - 89 3.5.99.7 additional information beta-chloro-D-alanine is not a functional substrate Bradyrhizobium japonicum USDA 110 ? - ? 89 3.5.99.7 additional information the enzyme improves the growth of canola plants after infection with Pseudomonas putida strain UW4 conferring salt tolerance to the plants, overview Pseudomonas putida UW4 ? - ? 89 3.5.99.7 additional information leucine-responsive regulatory protein is a potential regulator of ACC deaminase transcription Pseudomonas putida UW4 ? - ? 89 3.5.99.7 additional information Site-directed mutagenesis shows that altering two amino acid residues at the same positions within the predicted active site serves to change the enzyme from D-cysteine desulfhydrase to deaminase from Pseudomonas putida UW4 the enzyme is converted into D-cysteine desulfhydrase. Pseudomonas putida UW4 ? - ? 89 3.5.99.7 additional information mycorrhizal colonization, as well as arbuscule abundance, is significantly stimulated by Pseudomonas putida UW4 AcdS+, but not by the AcdS mutant, on cucumber. Pseudomonas putida UW4 AcdS+ ? - ? 89 3.5.99.7 additional information ACC deaminase activity is detected by the following three methods: 2-oxobutyrate production in the coupled reaction with lactate dehydrogenase and NADH, 2-oxobutyrate production by the colorimetric method, and production of ammonium ions in the coupled reaction with glutamate dehydrogenase Amycolatopsis methanolica 239 ? - - 89 3.5.99.7 O-acetyl-D-serine + H2O - Pseudomonas sp. ? - ? 363517