primary structure analysis:

Tools: 
HeliQuest A web server to screen sequences with specific alpha-helical properties HeliQuest calculates from an α-helix sequence its physicochemical properties and amino acid composition and uses the results to screen any databank in order to identify protein segments possessing similar features.
The server is divided into 2 interconnected modules: the sequence analysis module and the screening module.
In addition, the mutation module, (available from the sequence analysis module), allows user to mutate helices manually or automatically by genetic algorithm to create analogues with specific properties.-http://heliquest.ipmc.cnrs.fr/

After entering the helix sequence of the protein this protein sequence is get by entering the name of the protein in uniprot then paste it by clicking the analysis button and get the following
http://heliquest.ipmc.cnrs.fr/cgi-bin/ComputParams.py