[1] CSIC, IBVF, E-41080 Seville, Spain
[2] Univ Seville, CicCartuja, Seville, Spain
[3] Leiden Univ, Gorlaeus Labs, NL-2300 RA Leiden, Netherlands
[4] Wageningen Univ, Biochem Lab, NL-6700 AP Wageningen, Netherlands
[5] Univ Zaragoza, Dept Biochem, E-50009 Zaragoza, Spain
[6] Univ Zaragoza, BIFI, E-50009 Zaragoza, Spain