[1] KTH Royal Inst Technol, Sch Biotechnol, Sci Life Lab, SE-17121 Stockholm, Sweden
[2] Univ Cambridge, Dept Biochem, Cambridge Ctr Prote, Tennis Court Rd, Cambridge CB2 1QR, England
[3] Univ Cambridge, Dept Genet, Downing St, Cambridge CB2 3EH, England
[4] Uppsala Univ, Sci Life Lab, Genet & Pathol, Dept Immunol, SE-75185 Uppsala, Sweden
[5] Univ Cambridge, Dept Biochem, Computat Prote Unit, Tennis Court Rd, Cambridge CB2 1QR, England
[6] KTH Royal Inst Technol, Sch Biotechnol, Dept Prote, SE-10691 Stockholm, Sweden
[7] Karolinska Inst, Dept Neurosci, Sci Life Lab, SE-17177 Stockholm, Sweden