Results 81 to 90 of about 38,610 (331)
Update: Enzymatische Synthese für industrielle Anwendungen
Die Biokatalyse hat sich zu einer nachhaltigen und wettbewerbsfähigen Alternative zur herkömmlichen chemischen Synthese entwickelt und ermöglicht die enzymbasierte Herstellung nicht nur von chemischen Grundstoffen, sondern auch von (nicht natürlichen) Aminosäuren, (seltenen) Zuckern und synthetischen Nukleotiden.
Thomas Bayer+4 more
wiley +1 more source
Chromatin and oxygen sensing in the context of JmjC histone demethylases [PDF]
Responding appropriately to changes in oxygen availability is essential for multicellular organism survival. Molecularly, cells have evolved intricate gene expression programmes to handle this stressful condition.
Abidi+139 more
core +4 more sources
Oxygen Activation by Mononuclear Mn, Co, and Ni Centers in Biology and Synthetic Complexes [PDF]
The active sites of metalloenzymes that catalyze O2-dependent reactions generally contain iron or copper ions. However, several enzymes are capable of activating O2 at manganese or nickel centers instead, and a handful of dioxygenases exhibit activity ...
Fiedler, Adam T., Fischer, Anne A.
core +1 more source
Catalysts on Demand: Selective Oxidations by Laboratory-Evolved Cytochrome P450 BM3 [PDF]
Efficient catalysts for selective oxidation of C-H bonds using atmospheric oxygen are highly desirable to decrease the economic and environmental costs associated with conventional oxidation processes.
Arnold, Frances H., Lewis, Jared C.
core +2 more sources
Natural combinatorics: Evolutionary mixing and matching of three cyanobacterial biosynthetic gene clusters resulted in the emergence of minutumamides, a novel family of peptide‐polyketide hybrids. Retro‐evolutionary analysis led to the discovery of nostopeptolide KVJ3, an evolutionary ancestor that links nostopeptolide and minutumamide biosynthesis and
Keishi Ishida+6 more
wiley +1 more source
Enzymological and structural characterization of Arabidopsis thaliana heme oxygenase‐1
Arabidopsis thaliana heme oxygenase‐1 (AtHO‐1), a metabolic enzyme in the heme degradation pathway, serves as a prototype for study of the bilin‐related functions in plants.
Jia Wang+6 more
doaj +1 more source
First Record of \u3ci\u3eAphis Helianthi\u3c/i\u3e (Homoptera: Aphididae) as a Pest of Celery [PDF]
In 1989, the aphid Aphis helianthi severely damaged five of 10 scouted celery fields in west central Michigan. In 1990 and in 1991, A. helianthi again was a problem. reaching pestiferous levels in three of 10 and two of 10 scouted fields.
Davis, M. G. Kortier, Grafius, E.
core +2 more sources
Haem oxygenase: a reappraisal of the stoicheiometry
Haem oxygenase (EC 1.14.99.3) in rat liver microsomes was first described as a mixed function oxidase utilising cytochrome P-450 [I]. Immunochemical studies suggest that NADP(H)-cytochrome c reductase activity is an essential component of the enzyme [2]. Indeed, it has been suggested [3] following the use of partially purified enzyme preparations, that
Owen T.G. Jones+2 more
openaire +3 more sources
A biosynthesis route for the polymer precursor tulipalin A starting from isoprenyl acetate is proposed. The alkane monooxygenase AlkB catalyzes the chemoselective terminal hydroxylation of isoprenyl acetate. Rational enzyme engineering further increased the activity of the membrane enzyme.
Andrea Nigl+11 more
wiley +1 more source
Distribution and diversity of enzymes for polysaccharide degradation in fungi
Fungi are important polysaccharide degraders in the environment and for biotechnology. Here, the increasing number of sequenced fungal genomes allowed for systematic identification of genes and proteins involved in polysaccharide degradation in 218 fungi.
Renaud Berlemont
doaj +1 more source