A thermally-stable enzyme detection assay that amplifies signal autonomously in water without assistance from biological reagents
作者:Kimy Yeung、Kyle M. Schmid、Scott T. Phillips
DOI:10.1039/c2cc36861g
日期:——
This Communication describes a thermally-stable small molecule and a corresponding assay strategy that autonomously amplifies a colorimetric signal when a specific enzyme biomarker is detected.
Anderson,S.N. et al., Journal of the Chemical Society. Perkin transactions II, 1972, p. 311 - 318
作者:Anderson,S.N. et al.
DOI:——
日期:——
Structure-Guided Design of Selective Inhibitors of Neuronal Nitric Oxide Synthase
作者:He Huang、Huiying Li、Pavel Martásek、Linda J. Roman、Thomas L. Poulos、Richard B. Silverman
DOI:10.1021/jm4000984
日期:2013.4.11
Nitric oxide synthases (NOSs) comprise three closely related isoforms that catalyze the oxidation of L-arginine to L-citrulline and the important second messenger nitric oxide (NO). Pharmacological selective inhibition of neuronal NOS (nNOS) has the potential to be therapeutically beneficial in various neurodegenerative diseases. Here, we present a structure-guided, selective nNOS inhibitor design based on the crystal structure of lead compound 1 in nNOS. The best inhibitor, 7, exhibited low nanomolar inhibitory potency and good isoform selectivities (nNOS over eNOS and iNOS are 472-fold and 239-fold, respectively). Consistent with the good selectivity, 7 binds to nNOS and eNOS with different binding modes. The distinctly different binding modes of 7, driven by the critical residue Asp597 in nNOS, offers compelling insight to explain its isozyme selectivity, which should guide future drug design programs.