SAXSTER is a new algorithm to combine small-angle x-ray scattering (SAXS) data and threading for high-resolution protein structure determination. Given a query sequence, SAXSTER first generates a list of template alignments using the MUSTER threading program from the PDB library. The SAXS data will then be used to prioritize the best template alignments based on the SAXS profile match, which are finally used for full-length atomic protein structure construction
pGenTHREADER and pDomTHREADER is two improved versions of the GenTHREADER protocol for recognizing and aligning protein sequences and demonstrate their application to structure prediction and superfamily discrimination. The two versions use the same core alignment algorithm and in both cases accept features derived from common inputs: protein sequence profiles and structural information. However, the representation and combinations of these features differ between the methods and scoring and confidence values have been tuned to optimize performance in each application domain.
TAXFOLD is a new taxonomy-based protein fold recognition method. It extensively exploits the sequence evolution information from PSI-BLAST profiles and the secondary structure information from PSIPRED profiles. A comprehensive set of 137 features is constructed, which allows for the depiction of both global and local characteristics of PSI-BLAST and PSIPRED profiles.
THREADER is a software of threading which is an approach to fold recognition which used a detailed 3-D representation of protein structure. The idea was to physically “thread” a sequence of amino acid side chains onto a backbone structure (a fold) and to evaluate this proposed 3-D structure using a set of pair potentials and (importantly) a separate solvation potential.