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Improving taxonomy-based protein fold recognition by using global and local features

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Improving taxonomy-based protein fold recognition by using global and local features
นักวิจัย : Yang, Jian-Yi , Chen, Xin
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Yang, J. Y., & Chen, X. (2011). Improving taxonomy-based protein fold recognition by using global and local features. Proteins: Structure, Function, and Bioinformatics, 79(7), 2053-2064. , 0887-3585 , http://hdl.handle.net/10220/17877 , http://dx.doi.org/10.1002/prot.23025
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Proteins: structure, function, and bioinformatics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Fold recognition from amino acid sequences plays an important role in identifying protein structures and functions. The taxonomy-based method, which classifies a query protein into one of the known folds, has been shown very promising for protein fold recognition. However, extracting a set of highly discriminative features from amino acid sequences remains a challenging problem. To address this problem, we developed a new taxonomy-based protein fold recognition method called TAXFOLD. 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. We tested TAXFOLD on four datasets and compared it with several major existing taxonomic methods for fold recognition. Its recognition accuracies range from 79.6 to 90% for 27, 95, and 194 folds, achieving an average 6.9% improvement over the best available taxonomic method. Further test on the Lindahl benchmark dataset shows that TAXFOLD is comparable with the best conventional template-based threading method at the SCOP fold level. These experimental results demonstrate that the proposed set of features is highly beneficial to protein fold recognition.

บรรณานุกรม :
Yang, Jian-Yi , Chen, Xin . (2554). Improving taxonomy-based protein fold recognition by using global and local features.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yang, Jian-Yi , Chen, Xin . 2554. "Improving taxonomy-based protein fold recognition by using global and local features".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yang, Jian-Yi , Chen, Xin . "Improving taxonomy-based protein fold recognition by using global and local features."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Yang, Jian-Yi , Chen, Xin . Improving taxonomy-based protein fold recognition by using global and local features. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.