Divergent biosynthesis yields a cytotoxic aminomalonate-containing precolibactin

August 22nd, 2016 by Zhong-Rui Li

Nature Chemical Biology 12, 773 (2016). doi:10.1038/nchembio.2157

Authors: Zhong-Rui Li, Jie Li, Jin-Ping Gu, Jennifer Y H Lai, Brendan M Duggan, Wei-Peng Zhang, Zhi-Long Li, Yong-Xin Li, Rong-Biao Tong, Ying Xu, Dong-Hai Lin, Bradley S Moore & Pei-Yuan Qian

Colibactin is an as-yet-uncharacterized genotoxic secondary metabolite produced by human gut bacteria. Here we report the biosynthetic discovery of two new precolibactin molecules from Escherichia coli, including precolibactin-886, which uniquely incorporates the highly sought genotoxicity-associated aminomalonate building block into its unprecedented macrocyclic structure. This work provides new insights into the biosynthetic logic and mode of action of this colorectal-cancer-linked microbial chemical.

  • Posted in Nat Chem Biol, Publications
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Fluorogenic probes reveal a role of GLUT4 N-glycosylation in intracellular trafficking

August 22nd, 2016 by Shinya Hirayama

Nature Chemical Biology 12, 853 (2016). doi:10.1038/nchembio.2156

Authors: Shinya Hirayama, Yuichiro Hori, Zsolt Benedek, Tadashi Suzuki & Kazuya Kikuchi

  • Posted in Nat Chem Biol, Publications
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Nitric Oxide Regulation of H-NOX Signaling Pathways in Bacteria

August 19th, 2016 by Lisa-Marie Nisbett and Elizabeth M. Boon

TOC Graphic

Biochemistry
DOI: 10.1021/acs.biochem.6b00754

Plant biology: Shoot for the top

August 18th, 2016 by Grant Miura

Nature Chemical Biology 12, 657 (2016). doi:10.1038/nchembio.2161

Author: Grant Miura

Structural biology: HDAC6 finally crystal clear

August 18th, 2016 by Yanli Liu

Nature Chemical Biology 12, 660 (2016). doi:10.1038/nchembio.2158

Authors: Yanli Liu, Li Li & Jinrong Min

Crystal structures of both catalytic domains of HDAC6 provide insights into the mechanisms of deacetylation for their specific substrates and a structural basis for understanding selective inhibition of HDAC6.

Gut microbiome: Branching into metabolic disease

August 18th, 2016 by Mirella Bucci

Nature Chemical Biology 12, 657 (2016). doi:10.1038/nchembio.2164

Author: Mirella Bucci

Small-Molecule inhibitors: Weed-control measures

August 18th, 2016 by Koichi Yoneyama

Nature Chemical Biology 12, 658 (2016). doi:10.1038/nchembio.2155

Author: Koichi Yoneyama

A high-throughput screen in the model plant Arabidopsis unveils leads for potential agents to combat Striga, a devastating root parasitic weed that affects food crops in Sub-Saharan Africa.

Chemical synthesis: Linking up lysines

August 18th, 2016 by Caitlin Deane

Nature Chemical Biology 12, 657 (2016). doi:10.1038/nchembio.2163

Author: Caitlin Deane

Target validation: Switching domains

August 18th, 2016 by Alessio Ciulli

Nature Chemical Biology 12, 659 (2016). doi:10.1038/nchembio.2154

Author: Alessio Ciulli

Chemical probes and drugs often bind to functional domains on disease-relevant proteins. A study suggests a chemical genetic approach to establish on-target effects by swapping the targeted domain, affording resistance to pharmacological inhibition while retaining functionality.

Innate immunity: A sweet switch

August 18th, 2016 by Terry L. Sheppard

Nature Chemical Biology 12, 657 (2016). doi:10.1038/nchembio.2162

Author: Terry L. Sheppard