Computational Biology Group, Temasek Life Sciences Laboratory, Singapore. alan@tll.org.sg|Computational Biology Group, Temasek Life Sciences Laboratory, Singapore. alan@tll.org.sg|Computational Biology Group, Temasek Life Sciences Laboratory, Singapore. alan@tll.org.sg|Computational Biology Group, Temasek Life Sciences Laboratory, Singapore. alan@tll.org.sg|Computational Biology Group, Temasek Life Sciences Laboratory, Singapore. alan@tll.org.sg