نتایج جستجو برای: 3 dioxygenase
تعداد نتایج: 1816562 فیلتر نتایج به سال:
Tryptophan degradation in mice initiated by indoleamine 2,3-dioxygenase was characterized, taking advantage of its induction by bacterial lipopolysaccharide. Our results demonstrated that in various tissues, N-formylkynurenine produced by the dioxygenase from tryptophan was rapidly hydrolyzed into kynurenine by a kynurenine formamidase, but it was not further metabolized. The localization in th...
It is shown that bacteria Bradyrhizobium japonicum 273 were capable of degrading phenol at moderate concentrations either in a free cell culture or by immobilized cells on granulated activated carbon particles. The amount degraded was greater an preparation than culture. application constant electric field during cultivation led to enhanced biodegradation and carbon. highest removal efficiency ...
Mycobacterium sp. strain PYR-1 degrades high-molecular-weight polycyclic hydrocarbons (PAHs) primarily through the introduction of both atoms of molecular oxygen by a dioxygenase. To clone the dioxygenase genes involved in PAH degradation, two-dimensional (2D) gel electrophoresis of PAH-induced proteins from cultures of Mycobacterium sp. strain PYR-1 was used to detect proteins that increased a...
Lipoxygenase possessing dual catalytic activities, i.e. dioxygenase and hydroperoxidase, was purified from the cytosols of term placentas from non-smoking women. Concanavalin A affinity chromatography followed by phenyl-Sepharose CL-4B chromatography resulted in the separation of one hydrophobic and one non-hydrophobic isoenzyme. The concanavalin A-purified enzyme was used in all subsequent exp...
Spheres of influence: Although cysteine and 3-mercaptopropionate dioxygenase bind react similar substrates, there are key differences in the first- second-coordination spheres that affect their catalytic reaction mechanism reactivity, as highlighted by density functional theory studies on large enzyme clusters.
Crocus sativus stigmas are the source of the saffron spice and accumulate the apocarotenoids crocetin, crocins, picrocrocin, and safranal, responsible for its color, taste, and aroma. Through deep transcriptome sequencing, we identified a novel dioxygenase, carotenoid cleavage dioxygenase 2 (CCD2), expressed early during stigma development and closely related to, but distinct from, the CCD1 dio...
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