Fast iodide-SAD phasing for high-throughput membrane protein structure determination.
Melnikov, I., Polovinkin, V., Kovalev, K., Gushchin, I., Shevtsov, M., Shevchenko, V., Mishin, A., Alekseev, A., Rodriguez-Valera, F., Borshchevskiy, V., Cherezov, V., Leonard, G.A., Gordeliy, V., Popov, A.(2017) Sci Adv 3: e1602952-e1602952
- PubMed: 28508075 
- DOI: https://doi.org/10.1126/sciadv.1602952
- Primary Citation of Related Structures:  
5JGP, 5JRF, 5JSI, 5JTB - PubMed Abstract: 
We describe a fast, easy, and potentially universal method for the de novo solution of the crystal structures of membrane proteins via iodide-single-wavelength anomalous diffraction (I-SAD). The potential universality of the method is based on a common feature of membrane proteins-the availability at the hydrophobic-hydrophilic interface of positively charged amino acid residues with which iodide strongly interacts. We demonstrate the solution using I-SAD of four crystal structures representing different classes of membrane proteins, including a human G protein-coupled receptor (GPCR), and we show that I-SAD can be applied using data collection strategies based on either standard or serial x-ray crystallography techniques.
Organizational Affiliation: 
European Synchrotron Radiation Facility, 38043 Grenoble, France.