Antibiotic from the bear's mouth
Scientists from the Laboratory of biocatalysis developed a new microfluidics-based ultrahigh-throughput technology for the “deep functional profiling” of microbial communities and used it to search for bacteria producing new antibiotics in the microbiome of the Siberian bear's oral cavity. This methodology allowed them not only to find the antibiotic amicoumacin, elucidating the mechanisms of its biosynthesis and self-resistance, but also to investigate the spectrum of its activity at the level of various bacterial communities. The results published in PNAS will find numerous applications in the field of antibiotic discovery and will help to solve the problem of antibiotic resistance.
- Scientists present a fully genetically encodable bioluminescent system
Scientists from Russia, UK, Spain, Brazil, Japan, and Austria discovered the essential set of enzymes that allows glowing fungi to emit light. The bioluminescent system includes a brand- new luciferase and three enzymes that enable biosynthesis of fungal luciferin from a widespread metabolite – caffeic acid – as well as its recycling. The genes encoding this “caffeic acid cycle” make up a unique molecular toolkit that allows to turn any higher organism into a glowing one. The work was published in Proceedings of the National Academy of Sciences of the United States of America.
- Kurt Wüthrich took part in the workshop of the Structural biology department
Professor Kurt Wüthrich, Nobel Laureate in Chemistry, 2002, visited Shemyakin–Ovchinnikov Institute of bioorganic chemistry RAS and took part in the workshop of the Structural biology department of the Institute (headed by Prof. Alexander Arseniev).
- Ras-dva: make regeneration great again
The researchers from Laboratory of molecular bases of embryogenesis recently hypothesised that the decrease of limb regeneration capacity in amniotes (reptiles, birds and mammals) could be caused by elimination in evolution of genes, encoding for important regulators of specific wound epithelium and blastema organization, which are used by excellent regenerating anamniotes (fish and amphibia). Using two anamniotic model organisms Danio rerio adult fishes and Xenopus laevis tadpoles the authors have shown the essential role of Ras-dva small GTPases in regulation of these processes, meanwhile their genes are eliminated in a stepwise manner during evolution till total absence in placental mammals. The obtained results support the hypothesis. The investigation is published in Scientific reports.
- "Molecular Brain" seminar
The seminar will take place on January 22 at 16:00 in the Minor hall. Professor Leonard Khiroug from the University of Helsinki (Finland) will talk about the "awake microscopy" methodology utilized for high-resolution brain imaging. Everyone is cordially invited.
- Lecture by Prof. Zhang Shuguang «The QTY Code: A tool for designing detergent-free membrane proteins»
XII.24.18 (This event is over)
Prof. Zhang Shuguang from MIT will deliver a lecture entitled «The QTY Code: A tool for designing detergent-free membrane proteins». Date and time: Mon 24 December 2018 15:00. Location: Conference hall at 3rd floor BON IBCh.
- Lecture by Prof. Igor Roninson: «CDK8/19: a druggable mediator of transcriptional reprogramming»
XII.17.18 (This event is over)
Prof. Igor Roninson from University of South Carolina will deliver a lecture entitled «CDK8/19: a druggable mediator of transcriptional reprogramming». Date and time: Mon 17 December 2018 11:00. Location: Conference hall at 3rd floor BON IBCh.