1. Competitive binding assay for biotin and biotin derivatives, based on avidin and biotin-4-fluorescein Elke Oberbichler, Maria Wiesauer, Eva Schloegl, Jessica Stangl, Felix Faschinger, Gunther Knoer, Hermann J. Gruber and Vesa P. Hytoenen 2. (Strept)avidin as a template for ligands other than biotin: An overview Vesa P. Hytoenen 3. Engineering siderophores Sina Rutschlin and Thomas Boettcher 4. Competitive profiling for enzyme inhibitors using chemical probes Michaela Prothiwa and Thomas Boettcher 5. The NMR tube bioreactor Alexandra V. Chatzikonstantinou, Antonis Tsiailanis, Ioannis P. Gerothanassis, Haralambos Stamatis, Enrico Ravera, Marco Fragai, Claudio Luchinat, Giacomo Parigi and Andreas G. Tzakos 6. A chemically-controlled system for activating RAS GTPases Emily M. Dieter and Dustin J. Maly 7. Temporal and rheostatic control of genome editing with a chemically-inducible Cas9 Cindy T. Wei, Dustin J. Maly and Douglas M. Fowler 8. Synthetic receptors to understand and control cellular functions Hung-Ju Chang and Jerome Bonnet 9. A suite of bioassays to evaluate CREB inhibitors Bingbing X. Li and Xiangshu Xiao 10. Identification of lamins as the molecular targets of LBL1 using a clickable photoaffinity probe Xiangshu Xiao and Bingbing X. Li 11. REX technologies for profiling and decoding the electrophile signaling axes mediated by Rosetta Stone proteins Marcus J. C. Long, Daniel A. Urul and Yimon Aye 12. Building artificial genetic circuits to understand protein function Louis H. Scott, James C. Mathews, Aleksandra Filipovska and Oliver Rackham 13. Methods for studying human sirtuins with activity-based chemical probes Song Zheng, Jessica Wohlfahrt, Ian Cohen and Yana Cen 14. Site-directed labeling of ss-arrestin with monobromobimane for measuring their interaction with G protein-coupled receptors Ashish Srivastava, Mithu Baidya, Hemlata Dwivedi-Agnihotri and Arun K. Shukla 15. Reversible biotinylation of purified proteins for measuring protein-protein interactions Hemlata Dwivedi-Agnihotri, Ashish Srivastava and Arun K. Shukla