Results 61 to 70 of about 90,505 (292)

Safety evaluation of the food enzyme xylose isomerase from the genetically modified Streptomyces rubiginosus strain DP‐Pzn37

EFSA Journal, 2020
The food enzyme is a d‐xylose aldose‐ketose‐isomerase (EC 5.3.1.5) produced with the genetically modified Streptomyces rubiginosus strain DP‐Pzn37 by Danisco US Inc. Although the production strain contains antibiotic resistance genes, the food enzyme was
EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP), Vittorio Silano, José Manuel Barat Baviera, Claudia Bolognesi, Pier Sandro Cocconcelli, Riccardo Crebelli, David Michael Gott, Konrad Grob, Evgenia Lampi, Alicja Mortensen, Gilles Rivière, Inger‐Lise Steffensen, Christina Tlustos, Henk van Loveren, Laurence Vernis, Holger Zorn, Boet Glandorf, Lieve Herman, Karl‐Heinz Engel, Andrew Smith, Davor Želježić, Margarita Aguilera‐Gómez, Ana Gomes, Natália Kovalkovičová, Yi Liu, Joaquim Maia, Sandra Rainieri, Andrew Chesson   +27 more
doaj   +1 more source

Biosynthesis of the Red Algal Diterpene Peyssonnosol in Bacteria

Angewandte Chemie International Edition, EarlyView.
Two terpene synthases derived from Anaerolineae bacteria catalyse the biosynthesis of peyssonnosene‐type diterpenes from red algae. Site‐directed mutagenesis enabled a partial functional switch, resulting in the formation of additional byproducts. The intricate cyclisation mechanisms were investigated through isotopic labelling experiments and density ...
Zhiyong Yin, Zhehui Hu, Kexin Yang, Guihu Lu, Georges B. Tabekoueng, Pingping Wu, Qi Luo, Juan Xu, Bernd Goldfuss, Jeroen S. Dickschat, Guangkai Bian   +10 more
wiley   +1 more source

Phosphoglucose isomerase: a ketol isomerase with aldol C2-epimerase activity. [PDF]

Proceedings of the National Academy of Sciences, 1993
With 13C NMR, phosphoglucose isomerase (PGI; D-glucose-6-phosphate ketol-isomerase, EC 5.3.1.9) is shown to produce mannose 6-phosphate (M6P) slowly from a much more rapidly catalyzed equilibrium between glucose 6-phosphate (G6P) and fructose 6-phosphate (F6P).
openaire   +3 more sources

Sustainable biofuel production from fish processing waste: lipase‐catalyzed hydroesterification of tilapia residual oil

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Fishing waste and byproducts, whether naturally occurring or from industrial processing, are important sources of high‐value compounds. Fertilizers, biomaterials, cosmetics, biolubricants, and biodiesel are some of the substances that can be obtained from these residues. The objective of this study was to conduct a theoretical and experimental
Patrick da Silva Sousa, Francisco Simão Neto, Paulo Gonçalves de Sousa Junior, Marcos Carlos de Mattos, Maria Alexsandra de Sousa Rios, Aluísio Marques da Fonseca, Diego Lomonaco, José C. S. dos Santos   +7 more
wiley   +1 more source

Pharmacokinetics of betamethasone in pre‐eclampsia: An in vivo and ex vivo study

British Journal of Clinical Pharmacology, EarlyView.
Aims To enhance understanding of betamethasone and its metabolites' pharmacokinetics in pregnancy, specifically early‐onset pre‐eclampsia, through a population pharmacokinetic model. Additionally, to investigate the placental metabolism and transfer of betamethasone and its main metabolites.
Sam Schoenmakers, Letao Li, Anna C. M. Kluivers, Michelle Broekhuizen, Madhavi S. Harhangi, A. H. Jan Danser, Irwin Reiss, Karel Allegaert, Sjoerd A. A. van den Berg, Bertrand D. van Zelst, Ron H. N. van Schaik, Philip L. J. DeKoninck, Emma Ronde, Sebastiaan D. T. Sassen, Sinno H. P. Simons, Birgit C. P. Koch   +15 more
wiley   +1 more source

Simvastatin overcomes the pPCK1‐pLDHA‐SPRINGlac axis‐mediated ferroptosis and chemo‐immunotherapy resistance in AKT‐hyperactivated intrahepatic cholangiocarcinoma

Cancer Communications, EarlyView.
Abstract Background Intrahepatic cholangiocarcinoma (ICC) is a challenging cancer with an increasing incidence. The Phase III TOPAZ‐1/KEYNOTE‐966 study demonstrated chemo‐immunotherapy (CIT) as a significant advancement, potentially replacing traditional chemotherapy for advanced biliary tract cancer.
Jinghan Zhu, Yixiao Xiong, Yuxin Zhang, Huifang Liang, Kun Cheng, Yuanxiang Lu, Guangzhen Cai, Yang Wu, Yunhui Fan, Xiaoping Chen, Hong Zhu, Zeyang Ding, Wanguang Zhang   +12 more
wiley   +1 more source

A Tailored Phospho‐p53 Library Probes Antibody Specificity and Recognition Limitations

ChemBioChem, EarlyView.
Site‐specifically phosphorylated isoforms of the tumor suppressor p53 – encompassing all seven known phosphorylation sites within the TAD1 domain –are created upon optimization of semisynthesis protocols. This “designer" p53 library enabled validation of phosphorylation‐specific p53 antibodies and revealed epitope masking by phosphorylation in commonly
Mateusz Hess, Jonathan H. Davies, Sofia Margiola, Sonja Schneider, Thomas Hicks, Nishant Rai, Manuel M. Müller   +6 more
wiley   +1 more source

Characterization of the microsomal steroid-8-ene isomerase of cholesterol biosynthesis.

Journal of Lipid Research, 1978
Rat liver microsomes contain an enzyme that catalyzes the isomerization of the nuclear double bond of steroids from the 8(9) position to the 7(8) position.
N Yamaga, J L Gaylor
doaj  

Pathological Disulfide Bond Crosslinking: Molecular Insights into Amyloidogenesis and Diseases Progression

ChemBioChem, EarlyView.
This review explores pathological disulfide‐crosslinking as a key driver of amyloidogenic protein misfolding and aggregation. Oxidative and ER stress pathways contributing to disease progression are discussed and emerging therapeutic strategies targeting disulfide‐linked aggregates in neurodegenerative and systemic amyloid diseases are examined ...
Dong Min Kang, Nataliia Lukianenko, Ja‐Hyun Baik, Yun Kyung Kim, Sungsu Lim   +4 more
wiley   +1 more source

Differences in the suitability of published honey bee (Apis mellifera) reference genes between the African subspecies Apis mellifera scutellata and European derived Apis mellifera

Molecular Ecology, EarlyView., 2023
Abstract Quantitative real‐time polymerase chain reaction (qPCR) is a method widely used to determine changes and differences in gene expression. As target gene expression is most often quantified relative to the expression of reference genes, the validation of suitable reference genes is of critical importance.
Anja Buttstedt, Christian W. W. Pirk, Abdullahi A. Yusuf   +2 more
wiley   +1 more source