Title
Comparing Kernels for Predicting Protein Binding Sites from Amino Acid Sequence
Abstract
The ability to identify protein binding sites and to detect specific amino acid residues that contribute to the specificity and affinity of protein interactions has important implications for problems ranging from rational drug design to analysis of metabolic and signal transduction networks. Support vector machines (SVM) and related kernel methods offer an attractive approach to predicting protein binding sites. An appropriate choice of the kernel function is critical to the performance of SVM. Kernel functions offer a way to incorporate domain-specific knowledge into the classifier. We compare the performance of three types of kernels functions: identity kernel, sequence-alignment kernel, and amino acid substitution matrix kernel in the case of SVM classifiers for predicting protein-protein, protein-DNA and protein-RNA binding sites. The results show that the identity kernel is quite effective in on all three tasks. The substitution kernel based on amino acid substitution matrices that take into account structural or evolutionary conservation or physicochemical properties of amino acids yields modest improvement.
Year
DOI
Venue
2006
10.1109/IJCNN.2006.246626
IJCNN
Keywords
Field
DocType
protein-dna binding sites,protein interactions,domain-specific knowledge,amino acid sequence,amino acid residues,matrix algebra,proteins,signal transduction networks,biology computing,amino acid substitution matrices,molecular biophysics,protein-rna binding sites,amino acid substitution matrix kernel,rational drug design,support vector machines,kernel function,sequence-alignment kernel,protein binding,sequence alignment,amino acid,binding site,support vector machine,evolutionary conservation,kernel method
Kernel (linear algebra),Drug design,Amino acid,Computer science,Support vector machine,Artificial intelligence,Kernel method,Substitution matrix,Machine learning,Peptide sequence,Kernel (statistics)
Conference
ISSN
ISBN
Citations 
2161-4393
0-7803-9490-9
1
PageRank 
References 
Authors
0.36
12
4
Name
Order
Citations
PageRank
Feihong Wu1724.38
Byron Olson281.61
Drena Dobbs342335.43
Vasant Honavar43353468.10