Systematic and Comparative Evaluation of Software Programs for Template-Based Modeling of Protein Structures

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Modeling protein structures is critical for understanding protein functions in various biological and biotechnological studies. Among representative protein structure modeling approaches, template-based modeling (TBM) is by far the most reliable and most widely used approach to model protein structures. However, it still remains as a challenge to select appropriate software programs for pairwise alignments and model building, two major steps of the TBM. In this paper, pairwise alignment methods for TBM are first compared with respect to the quality of structure models built using these methods. This comparative study is conducted using comprehensive datasets, which cover 6185 domain sequences from Structural Classification of Proteins extended for soluble proteins, and 259 Protein Data Bank entries (whole protein sequences) from Orientations of Proteins in Membranes database for membrane proteins. Overall, a profile-based method, especially PSI-BLAST, consistently shows high performance across the datasets and model evaluation metrics used. Next, use of two model building programs, MODELLER and SWISS-MODEL, does not seem to significantly affect the quality of protein structure models built except for the Hard group (a group of relatively less homologous proteins) of membrane proteins. The results presented in this study will be useful for more accurate implementation of TBM.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2020-06
Language
English
Article Type
Article
Citation

BIOTECHNOLOGY JOURNAL, v.15, no.6

ISSN
1860-6768
DOI
10.1002/biot.201900343
URI
http://hdl.handle.net/10203/274718
Appears in Collection
CBE-Journal Papers(저널논문)
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