Results 61 to 70 of about 453,350 (316)

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

On the origin of the cobalt particle size effects in Fischer−Tropsch catalysis [PDF]

, 2009
The effects of metal particle size in catalysis are of prime scientific and industrial importance and call for a better understanding. In this paper the origin of the cobalt particle size effects in Fischer−Tropsch (FT) catalysis was studied.
Inorganic Chemistry and Catalysis, Sub Inorganic Chemistry and Catalysis, den Breejen, J.P., de Jong, K.P., Froseth, V., Holmen, A., Radstake, P.B., Bezemer, G.L., Bitter, J.H., Dep Scheikunde   +9 more
core  

Reactivity Descriptor in Solid Acid Catalysis: Predicting Turnover Frequencies for Propene Methylation in Zeotypes [PDF]

, 2014
Recent work has reported the discovery of metal surface catalysts by employing a descriptor-based approach, establishing a correlation between a few well-defined properties of a material and its catalytic activity.
Studt, Felix, Inorganic Chemistry and Catalysis, Sub Inorganic Chemistry and Catalysis, Bert M. Weckhuysen, Brogaard, Rasmus Y., Weckhuysen, Bert M., Felix Studt, Chuan-Ming Wang, Rasmus Y. Brogaard, Jens K. Nørskov, Nørskov, Jens K., Wang, Chuan Ming   +11 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Enantioselective radical chemistry: a bright future ahead

Beilstein Journal of Organic Chemistry
This perspective is focused on enantioselective free radical reactions. It describes several important catalytic asymmetric strategies applied to enantioselective radical reactions, including chiral Lewis acid catalysis, organocatalysis, photoredox ...
Anna C. Renner, Sagar S. Thorat, Hariharaputhiran Subramanian, Mukund P. Sibi   +3 more
doaj   +1 more source

Highly selective hydrogenation of arenes using nanostructured ruthenium catalysts modified with a carbon–nitrogen matrix

Nature Communications, 2016
The selective reduction of arenes is important in organic synthesis and also valorization of biomass. Here, the authors report the use of ruthenium-based nanoparticles, which display high activity in arene reduction and preferentially hydrogenate ...
Xinjiang Cui, Annette-Enrica Surkus, Kathrin Junge, Christoph Topf, Jörg Radnik, Carsten Kreyenschulte, Matthias Beller   +6 more
doaj   +1 more source

Deactivation and Regeneration of Mo/ZSM-5 Catalysts for Methane Dehydroaromatization

Eurasian Chemico-Technological Journal, 2010
The methane dehydroaromatization (DHA) was studied over a series of impregnated Mo/ZSM-5 catalysts with different molybdenum contents (1-10 wt.%). It was shown that total methane conversion was decreased by 30% during 12 h of DHA reaction.
E. V. Matus, O. B. Sukhova, I. Z. Ismagilov, V. I. Zaikovskii, M. A. Kerzhentsev, Z. R. Ismagilov, K. D. Dosumov, A. G. Mustafin   +7 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Development of Tip-enhanced Raman Spectroscopy and its Application to Heterogeneous Catalysis Research [PDF]

, 2018
Catalysis is at the forefront of many developments to make our society more sustainable and less dependent on fossil resources, such as coal, gas and crude oil.
Kumar, Naresh, Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis   +2 more
core  

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source