title: GPS-SNO: computational prediction of protein S-nitrosylation sites with a modified GPS algorithm.
abstract: As one of the most important and ubiquitous post-translational modifications (PTMs) of proteins, S-nitrosylation plays important roles in a variety of biological processes, including the regulation of cellular dynamics and plasticity. Identification of S-nitrosylated substrates with their exact sites is crucial for understanding the molecular mechanisms of S-nitrosylation. In contrast with labor-intensive and time-consuming experimental approaches, prediction of S-nitrosylation sites using computational methods could provide convenience and increased speed. In this work, we developed a novel software of GPS-SNO 1.0 for the prediction of S-nitrosylation sites. We greatly improved our previously developed algorithm and released the GPS 3.0 algorithm for GPS-SNO. By comparison, the prediction performance of GPS 3.0 algorithm was better than other methods, with an accuracy of 75.80%, a sensitivity of 53.57% and a specificity of 80.14%. As an application of GPS-SNO 1.0, we predicted putative S-nitrosylation sites for hundreds of potentially S-nitrosylated substrates for which the exact S-nitrosylation sites had not been experimentally determined. In this regard, GPS-SNO 1.0 should prove to be a useful tool for experimentalists. The online service and local packages of GPS-SNO were implemented in JAVA and are freely available at: http://sno.biocuckoo.org/.
authors.affiliation: Hubei Bioinformatics and Molecular Imaging Key Laboratory, Department of Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China. xueyu@mail.hust.edu.cn
authors.forename: Yu
authors.initials: Y
authors.lastname: Xue
authors.forename: Zexian
authors.initials: Z
authors.lastname: Liu
authors.forename: Xinjiao
authors.initials: X
authors.lastname: Gao
authors.forename: Changjiang
authors.initials: C
authors.lastname: Jin
authors.forename: Longping
authors.initials: L
authors.lastname: Wen
authors.forename: Xuebiao
authors.initials: X
authors.lastname: Yao
authors.forename: Jian
authors.initials: J
authors.lastname: Ren
mesh_terms: D000465:Algorithms; D009603:Nitroso Compounds / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry*
chemical_list: D009603:Nitroso Compounds; D011506:Proteins