John C. Stephens

Guanosine 5'-diphosphate 3'-diphosphate (ppGpp): positive effector for histidine operon transcription and general signal for amino-acid deficiency.

John C. Stephens, S W Artz, B N Ames · Proceedings of the National Academy of Sciences · 1975 · 238 citations · Full text

Systems Biology, Signal Transduction, Protein Expression +15

Self-Protection against Gliotoxin—A Component of the Gliotoxin Biosynthetic Cluster, GliT, Completely Protects Aspergillus fumigatus Against Exogenous Gliotoxin

Markus Schrettl, Stephen Carberry, Kevin Kavanagh et al. · PLoS Pathogens · 2010 · 186 citations · Full text

Biology, Fungal Developmental Biology, Microbial Toxin +14

The Versatility of Squaramides: From Supramolecular Chemistry to Chemical Biology

Luke A. Marchetti, Lokesh Kumar Kumawat, Nan Mao et al. · Chem · 2019 · 166 citations · Full text

First generation of pentazole (HN5, pentazolic acid), the final azole, and a zinc pentazolate salt in solution: A new N-dearylation of 1-(p-methoxyphenyl) pyrazoles, a 2-(p-methoxyphenyl) tetrazole and application of the methodology to 1-(p-methoxyphenyl) pentazoleElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b301491f/

Richard N. Butler, John C. Stephens, Luke A. Burke · Chemical Communications · 2003 · 108 citations

Pentazolic Acid, Mole Ratio, Heterocyclic +9

A Ceric Ammonium Nitrate N-Dearylation of <i>N</i>-<i>p</i>-Anisylazoles Applied to Pyrazole, Triazole, Tetrazole, and Pentazole Rings:  Release of Parent Azoles. Generation of Unstable Pentazole, HN₅/N₅^-, in Solution

Richard N. Butler, John M. Hanniffy, John C. Stephens et al. · The Journal of Organic Chemistry · 2008 · 103 citations