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Protein classification plays an important role in the research in Bioinformatics. Many discriminative methods, including the SVM based algorithms are used to do this job. In order to use these methods, variable length protein sequences must be converted into fixed-length dimensional vectors. The current work presents a new method of converting sequences into vectors. The method first constructs profile...
In this paper, we presented a method to improve structural modeling based on conserved domain clusters and structure-anchored alignment. First we mapped all the InterPro domains in the entire PDB, partitioned and clustered homologous domains into the domain-based template library. This aimed at expanding structural coverage to more protein sequences. For each cluster, we generated a multiple structural...
Homology modeling, as a successful protein structure prediction method, has two major deficiencies, i.e., the lack of the templates (known structures), and the accuracy of alignment between the query (unknown structure) and its templates. To solve these problems, we have constructed a conservative domain clustering template database, and proposed a profile-based alignment algorithm based on the profile...
Aiming at the two main shortcomings in Homology Modeling, we have designed and established a domain clustering database. Searching the database is a fundamental work for it. However, current alignment algorithms are mainly based on the sequences, ignoring the structure conservation in domain. This paper proposed a profile-based alignment which considers the structure information into the profile,...
Recently, large-scale protein-protein interactions were recovered using the similar two-hybrid system for the model systems. This information allows us to investigate the protein interaction network from a systematic point of view. However, experimentally determined interactions are susceptible to errors. A previous assessment estimated that only ~10% of the interactions can be supported by more than...
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