Computation and Systems Biology, Singapore-MIT Alliance, Nanyang Technological University, Singapore. merlin@pmail.ntu.edu.sg|Computation and Systems Biology, Singapore-MIT Alliance, Nanyang Technological University, Singapore. merlin@pmail.ntu.edu.sg|Computation and Systems Biology, Singapore-MIT Alliance, Nanyang Technological University, Singapore. merlin@pmail.ntu.edu.sg|Computation and Systems Biology, Singapore-MIT Alliance, Nanyang Technological University, Singapore. merlin@pmail.ntu.edu.sg|Computation and Systems Biology, Singapore-MIT Alliance, Nanyang Technological University, Singapore. merlin@pmail.ntu.edu.sg