Journal article

Publication year: 2020

Pages: 1178-1187

Journal: ChemBioChem

Volume number: 21

Issue number: 8

ISSN: 1439-4227

Open access status: Hybrid

DOI Link: https://doi.org/10.1002/cbic.201900677

Publisher: Wiley

Abstract: 
Proteins encoded by small open reading frames (sORFs) have a widespread occurrence in diverse microorganisms and can be of high functional importance. However, due to annotation biases and their technically challenging direct detection, these small proteins have been overlooked for a long time and were only recently rediscovered. The currently rapidly growing number of such proteins requires efficient methods to investigate their structure-function relationship. Herein, a method is presented for fast determination of the conformational properties of small proteins. Their small size makes them perfectly amenable for solution-state NMR spectroscopy. NMR spectroscopy can provide detailed information about their conformational states (folded, partially folded, and unstructured). In the context of the priority program on small proteins funded by the German research foundation (SPP2002), 27 small proteins from 9 different bacterial and archaeal organisms have been investigated. It is found that most of these small proteins are unstructured or partially folded. Bioinformatics tools predict that some of these unstructured proteins can potentially fold upon complex formation. A protocol for fast NMR spectroscopy structure elucidation is described for the small proteins that adopt a persistently folded structure by implementation of new NMR technologies, including automated resonance assignment and nonuniform sampling in combination with targeted acquisition.

Harvard Citation style: Kubatova, N., Pyper, D., Jonker, H., Saxena, K., Remmel, L., Richter, C., et al. (2020) Rapid Biophysical Characterization and NMR Spectroscopy Structural Analysis of Small Proteins from Bacteria and Archaea, ChemBioChem, 21(8), pp. 1178-1187. https://doi.org/10.1002/cbic.201900677

APA Citation style: Kubatova, N., Pyper, D., Jonker, H., Saxena, K., Remmel, L., Richter, C., Brantl, S., Evguenieva-Hackenberg, E., Hess, W., Klug, G., Marchfelder, A., Soppa, J., Streit, W., Mayzel, M., Orekhov, V., Fuxreiter, M., Schmitz, R., & Schwalbe, H. (2020). Rapid Biophysical Characterization and NMR Spectroscopy Structural Analysis of Small Proteins from Bacteria and Archaea. ChemBioChem. 21(8), 1178-1187. https://doi.org/10.1002/cbic.201900677