@article{WeizIshidaQuittereretal.2014,
  author    = {Weiz, Annika R. and Ishida, Keishi and Quitterer, Felix and Meyer, Sabine and Kehr, Jan-Christoph and Mueller, Kristian M. and Groll, Michael and Hertweck, Christian and Dittmann-Th{\"u}nemann, Elke},
  title     = {Harnessing the evolvability of tricyclic microviridins to dissect protease-inhibitor interactions},
  series = {Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition},
  volume    = {53},
  journal   = {Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition},
  number    = {14},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1433-7851},
  doi       = {10.1002/anie.201309721},
  pages     = {3735 -- 3738},
  year      = {2014},
  abstract  = {Understanding and controlling proteolysis is an important goal in therapeutic chemistry. Among the natural products specifically inhibiting proteases microviridins are particularly noteworthy. Microviridins are ribosomally produced and posttranslationally modified peptides that are processed into a unique, cagelike architecture. Here, we report a combined rational and random mutagenesis approach that provides fundamental insights into selectivity-conferring moieties of microviridins. The potent variant microviridin J was co-crystallized with trypsin, and for the first time the three-dimensional structure of microviridins was determined and the mode of inhibition revealed.},
  language  = {en}
}
@article{KrumbholzIshidaBaunachetal.2022,
  author    = {Krumbholz, Julia and Ishida, Keishi and Baunach, Martin and Teikari, Jonna and Rose, Magdalena M. and Sasso, Severin and Hertweck, Christian and Dittmann, Elke},
  title     = {Deciphering chemical mediators regulating specialized metabolism in a symbiotic cyanobacterium},
  series = {Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker. International edition},
  journal   = {Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker. International edition},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1433-7851},
  doi       = {10.1002/anie.202204545},
  pages     = {10},
  year      = {2022},
  abstract  = {Genomes of cyanobacteria feature a variety of cryptic biosynthetic pathways for complex natural products, but the peculiarities limiting the discovery and exploitation of the metabolic dark matter are not well understood. Here we describe the discovery of two cell density-dependent chemical mediators, nostoclide and nostovalerolactone, in the symbiotic model strain Nostoc punctiforme, and demonstrate their pronounced impact on the regulation of specialized metabolism. Through transcriptional, bioinformatic and labeling studies we assigned two adjacent biosynthetic gene clusters to the biosynthesis of the two polyketide mediators. Our findings provide insight into the orchestration of specialized metabolite production and give lessons for the genomic mining and high-titer production of cyanobacterial bioactive compounds.},
  language  = {en}
}