Complex Systems Division and Lund Swegene Bioinformatics Facility, Department of Theoretical Physics, Lund University, Sweden. per@thep.lu.se|Complex Systems Division and Lund Swegene Bioinformatics Facility, Department of Theoretical Physics, Lund University, Sweden. per@thep.lu.se|Complex Systems Division and Lund Swegene Bioinformatics Facility, Department of Theoretical Physics, Lund University, Sweden. per@thep.lu.se