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  • enzymes
  • As a signature pattern for these enzymes we selected a region that includes a tyrosine residue which, in 3,4-PCD, has been shown [ 2 ], to be implicated in the binding of the ferric iron atom. (expasy.org)
  • Both enzymes have been characterized as 2-hydroxy-6-oxohepta-2,4-dienoate hydrolases with low activity toward 2-hydroxy-6-oxophenylhexa-2,4-dienoate (the substrate of BphD), but EtbD2 and EtbD1 convert the latter compound with 11 and 3.3% relative activity, respectively (Yamada et al. (alpfmedical.info)
  • Annotation described in this paper also reveals evidence for several metabolic pathways that have yet to be observed experimentally, including a sulphur oxidation ( sox FCDYZAXB) gene cluster, Calvin cycle enzymes, and proteins involved in nitrogen fixation in other species (including RubisCo, ribulose-phosphate 3-epimerase, and nif gene families, respectively). (biomedcentral.com)
  • A large number of microbes capable of utilizing toxic chemicals as their sole sources of carbon and energy have been isolated, many of which break complex chemical compounds down to carbon dioxide and water through a series of chemical reactions catalyzed by microbial enzymes [ 5 - 8 ], such as monooxygenases, dioxygenases, reductases, deaminases, and dehalogenases. (biomedcentral.com)
  • family
  • Examples of recent gene duplication events in signaling as well as dioxygenase clusters are present, indicating selective gene family expansion as a relatively recent event in D. aromatica 's evolutionary history. (biomedcentral.com)
  • species
  • Activation of chymotrypsinogen in vitro by the action of trypsin and activated chymotrypsin leads to the species depicted in fig. 6-2. (centrallakesclinic.biz)
  • form
  • 2006). Two cis-dihydrodiol dehydrogenases BphB1 and BphB2, which are encoded on pRHL1 and pRHL2, respectively, catalyze the second step in biphenyl catabolism, i.e., the rearomatization of the cis-dihydrodiol to form 2,3-dihydroxybiphenyl. (alpfmedical.info)
  • environment
  • This, along with its ability to reduce perchlorate (a teratogenic contaminant introduced into the environment by man) and inquiry into its use in biocells [ 3 ] has led to interest in using this organism for bioremediation and energy production. (biomedcentral.com)