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An efficient system for the fast and efficient purification of transglutaminase from recombinant Streptomyces platensis and expressed in Streptomyces lividans 25-2 is described. Because the purification procedure of this system is flexible, culture broth from laboratory (20 l) and pilot-plant (130 l) fermentations were used to purify the enzyme to electrophoretic homogeneity with high purity (90-95%) and yield (61-77%) within 1 or 2 days.
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http://dx.doi.org/10.1007/s10529-006-9205-5 | DOI Listing |
J Org Chem
September 2025
Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, P. R. of China.
A Mg(OTf)-catalyzed asymmetric Michael addition/cyclization cascade reaction between 3-isothiocyanato oxindoles and 2-arylidene-1,3-indanediones has been developed. This transformation provides an efficient and concise approach to biologically important bispiro[indanedione-oxindole-pyrrolidinyl]s under mild conditions in good to excellent yields (70-99% yields) with moderate to good stereoselectivities (up to 99% and >95:5 d.r.
View Article and Find Full Text PDFChem Commun (Camb)
September 2025
School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China.
A polydopamine-glued g-CN/CoFeWO membrane, prepared one-pot synthesis, achieves complete sulfamethoxazole degradation through synergistic photocatalysis and PMS activation. It exhibits robust stability over 10 hours of continuous operation, maintaining high efficiency (97%) even in real municipal wastewater effluent, offering a novel and promising water purification strategy.
View Article and Find Full Text PDFEnviron Microbiol Rep
October 2025
Reference Center for Lactobacilli (CERELA-CONICET), San Miguel de Tucumán, Argentina.
Limosilactobacillus fermentum CRL2085, isolated from feedlot cattle rations, displayed high efficiency as a probiotic when administered to animals. A comprehensive genomic analysis was performed to elucidate the genetic basis underlying its probiotic potential. Fifteen genomic islands and CRISPR-Cas elements were identified in its genome.
View Article and Find Full Text PDFChem Pharm Bull (Tokyo)
September 2025
Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Antigen-binding proteins, such as nanobodies, modified with functional small molecules hold great potential for applications including imaging probes, drug conjugates, and localized catalysts. However, traditional chemical labeling methods that randomly target lysine or cysteine residues often produce heterogeneous conjugates with limited reproducibility. Conventional site-specific conjugation approaches, which typically modify only the N- or C-terminus, may also be insufficient to achieve the desired functionalities.
View Article and Find Full Text PDFAnal Chim Acta
November 2025
Chemical and Veterinary Investigations Office Stuttgart, Schaflandstraße 3/2, 70736, Fellbach, Germany.
Background: Previous studies involving cleanup via conventional solid-phase extraction (SPE) materials to overcome matrix effects for the polar organophosphonate and -phosphinate pesticides glyphosate, glufosinate, ethephon, fosetyl, and their various metabolites often showed limitations due to the existence of various matrix compounds in plant commodities with similar polarity. To overcome existing drawbacks, we utilized the unique selectivity provided by metal oxides as SPE materials. These were exploited in a novel automated online SPE-LC-MS/MS method which allowed analyte-specific trapping in the presence of excessive amounts of matrix compounds as typically contained in extracts of the Quick Polar Pesticides (QuPPe) method.
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