NPS@ is the protein sequence analysis Web server of the Pôle BioInformatique Lyonnais, a group of biocomputing teams, and provides the user with many of the most commonly used tools for protein sequence analysis.
This collection of tools provides the user with everything they need to analyze protein seqeuces. The site sticks mainly to the bigger and well published tools. Most of the interface is as simple as inputing the sequence and adjusting parameters but the help page only tells the user what types of sequences are acceptable. Results are sometimes cluttered but it all depends on which tool is being used.