Bioinformatics Research Centre, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore. mstepanova@pmail.ntu.edu.sg|Bioinformatics Research Centre, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore. mstepanova@pmail.ntu.edu.sg|Bioinformatics Research Centre, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore. mstepanova@pmail.ntu.edu.sg