Results 91 to 100 of about 31,758 (236)

Direct evidence that the rifamycin polyketide synthase assembles polyketide chains processively [PDF]

Proceedings of the National Academy of Sciences, 1999
The assembly of the polyketide backbone of rifamycin B on the type I rifamycin polyketide synthase (PKS), encoded by the rifA–rifE genes, is terminated by the product of the rifF gene, an amide synthase that releases the completed undecaketide as its macrocyclic lactam. Inactivation of
Yu, T. W., Shen, Y. M., Doi-Katayama, Y., Tang, L., Park, C., Moore, B. S., Hutchinson, C. R., Floss, H. G.   +7 more
openaire   +2 more sources

Enzymatic synthesis of bioactive quinolones and (thio)coumarins by fungal type III polyketide synthases

The FEBS Journal, EarlyView.
Quinolones are valuable scaffolds for drug discovery but are rare in nature. Here, we show that two fungal enzymes, AthePKS and FerePKS, can generate 2‐quinolones and two additional heteroaromatic scaffolds. Using AthePKS, we designed an artificial enzymatic cascade towards an antimicrobial quinolone from a simple precursor and implemented it in E ...
Nika Sokolova, Angelina Osipyan, Lili Zhang, Matthew R. Groves, Sandy Schmidt, Kristina Haslinger   +5 more
wiley   +1 more source

Convergence and parallelism in the evolution of plant metabolism

Journal of Integrative Plant Biology, EarlyView.
Similar traits in different organisms may originate from shared ancestry or evolve independently. The terminology used to define phenotypic similarity is often confusing. This review attempts to clarify the definitions and present examples from plant domestication and specialized metabolism to explain how complex traits evolve repeatedly in plants ...
Federico Scossa, Mustafa Bulut, Thomas Naake, John C. D'Auria, Alisdair R. Fernie   +4 more
wiley   +1 more source

Deciphering the biosynthetic pathways of lichen acids

New Phytologist, EarlyView.
Summary Depsides and depsidones are polyketide‐derived lichen acids widely distributed in lichen thalli, yet the biosynthetic gene clusters (BGCs) responsible for their production remain poorly understood. To address this gap, we investigated the diversity and evolutionary relationships of polyketide BGCs in lichens.
Wonyong Kim, Tânia Keiko Shishido, Huong T. Pham, Kyo Bin Kang, Rundong Liu, Matti Wahlsten, Jérôme Collemare, Hyun Park, Soon‐Ok Oh, Hyung‐Ho Ha, Hangun Kim, Jae‐Seoun Hur   +11 more
wiley   +1 more source

Template-directed biopolymerization: tape-copying Turing machines

, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

Reconstruction of the biosynthetic pathway for the core fungal polyketide scaffold rubrofusarin in Saccharomyces cerevisiae [PDF]

, 2013
BACKGROUND: Fungal polyketides include commercially important pharmaceuticals and food additives, e.g. the cholesterol-lowering statins and the red and orange monascus pigments.
Frandsen, Rasmus John Normand, Mortensen, Uffe Hasbro, Naesby, Michael, Rugbjerg, Peter   +3 more
core   +1 more source

Novel Type III Polyketide Synthases Biosynthesize Methylated Polyketides in Mycobacterium marinum [PDF]

Scientific Reports, 2018
AbstractMycobacterial pathogenesis is hallmarked by lipidic polyketides that decorate the cell envelope and mediate infection. However, factors mediating persistence remain largely unknown. Dynamic cell wall remodeling could facilitate the different pathogenic phases.
Amreesh Parvez, Samir Giri, Gorkha Raj Giri, Monika Kumari, Renu Bisht, Priti Saxena   +5 more
openaire   +3 more sources

Equipped for success: genomes and metabolomes of the European Amanita muscaria are conserved in its novel South African range

New Phytologist, EarlyView.
Summary Plants and soils have been moved around the world for centuries, but invasive mushrooms receive scant attention. The Amanita muscaria species complex was introduced to South Africa in the context of forestry, but its origins, ecology and recent evolution are unstudied. We sequenced the genomes of 24 Northern and Southern Hemisphere A. muscaria,
Grant R. Nickles, Cecelia K. Stokes, Deborah L. Narh, Kira M. T. Lynn, Savannah R. Fuqua, Corbin Bryan, Brooke M. Allen, Christopher P. Bivins, Jin Woo Bok, J. Stephen Brewer, Sikelela T. Buthelezi, Jahiya P. R. M. Clark, Kerri L. Coon, Lauren R. Corby, Martin P. A. Coetzee, Claudette Dewing, Tuan A. Duong, Mathew A. Harris, Nancy P. Keller, Katlego Kopotsa, Frances A. Lane, Holly L. Nichols, Alandie Nieuwoudt, Martin A. Nuñez, Miguel E. Medina Munoz, Sung Chul Park, Nam Q. Pham, Kaetlyn T. Ryan, Myriam Solís, Rytas Vilgalys, Jasmine Marea Wallace, Yen‐Wen Wang, Brenda D. Wingfield, Michael J. Wingfield, Travis K. Worley, Taylor A. Zallek, Mostafa Zamanian, Jason D. Hoeksema, Milton T. Drott, Anne Pringle   +39 more
wiley   +1 more source

ACTTS3 Encoding a Polyketide Synthase Is Essential for the Biosynthesis of ACT-Toxin and Pathogenicity in the Tangerine Pathotype of Alternaria alternata

Molecular Plant-Microbe Interactions, 2010
The tangerine pathotype of Alternaria alternata produces host-selective ACT-toxin and causes Alternaria brown spot disease of tangerine and tangerine hybrids.
Y. Miyamoto, A. Masunaka, T. Tsuge, M. Yamamoto, K. Ohtani, T. Fukumoto, K. Gomi, T. L. Peever, Y. Tada, K. Ichimura, K. Akimitsu   +10 more
doaj   +1 more source

TaRIP2 Positively Regulates Wheat Pollen Wall Formation Through MYB80‐Controlled Lipid Metabolism

Plant Biotechnology Journal, EarlyView.
ABSTRACT Male‐sterile genes and mutants are critical for hybrid seed production in monocotyledonous crops. Lipids are essential structural components of male reproductive organs, such as the anther and pollen. Here, we show that the pollen‐preferential gene TaRIP2 is essential for wheat anther development and pollen formation. RT‐qPCR analysis revealed
Ran Han, Aifeng Liu, Guang Qi, Chunhao Fang, XiaoLu Wang, Wenjing Xu, Kai Wang, Jihu Li, Qingqi Fan, Dungong Cheng, Faji Li, Haosheng Li, Jianjun Liu, Genying Li, Cheng Liu   +14 more
wiley   +1 more source