Bioretrosynthetic construction of a didanosine biosynthetic pathway.

MGSSHHHHHHSSGLVPRGSHMASNKYKRIFLVVMDSVGIGEAPDAEQFGDLGSDTIGHIAEHMNGLQMPNMVKLGLGNIR
EMKGISKVEKPLGYYTKMQEKSIGKD(TPO)MTGHWEIMGLYIDTPFQVFPEGFPKELLDELEEKTGRKIIGNKPASGTE
ILDELGQEQMETGSLIVYTSADSLLQIAAHEEVVPLDELYKICKIARELTLDEKYKVGRVIARPFVGEPGNFTRTPNRHD
YALKPFGRTVMNELKDSDYDVIAIGKISDIYDGEGVTESLRTKSNMDGMDKLVDTLNMDFTGLSFLNLVDFDALFGHRRD
PQGYGEALQEYDARLPEVFAKLKEDDLLLITADHGNDPIHPGTDHTREYVPLLAYSPSMKEGGQELPLRQTFADIGATVA
ENFGVKMPEYGTSFLNELKK

MGSSHHHHHHSSGLVPRGSHMASNKYKRIFLVVMDSVGIGEAPDAEQFGDLGSDTIGHIAEHMNGLQMPNMVKLGLGNIR
EMKGISKVEKPLGYYTKMQEKSIGKDTMTGHWEIMGLYIDTPFQVFPEGFPKELLDELEEKTGRKIIGNKPASGTEILDE
LGQEQMETGSLIVYTSADSLLQIAAHEEVVPLDELYKICKIARELTLDEKYKVGRVIARPFVGEPGNFTRTPNRHDYALK
PFGRTVMNELKDSDYDVIAIGKISDIYDGEGVTESLRTKSNMDGMDKLVDTLNMDFTGLSFLNLVDFDALFGHRRDPQGY
GEALQEYDARLPEVFAKLKEDDLLLITADHGNDPIHPGTDHTREYVPLLAYSPSMKEGGQELPLRQTFADIGATVAENFG
VKMPEYGTSFLNELKK

20 mg/mL protein in 1 mM manganese chloride, 25 mM Tris-HCl, pH 7.4 against a reservoir of 25% PEG3350, 50 mM ammonium sulfate, 100 mM Bis-Tris, pH 5.45, VAPOR DIFFUSION, HANGING DROP, temperature 293K

HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS

NKYKRIFLVVMDSVGIGEAPDAEQFGDLGSDTIGHIAEHMNGLQMPNMVKLGLGNIREMKGISKVEKPLGYYTKMQEKST
GKDTMTGHWEIMGLYIDTPFQVFPEGFPKELLDELEEKTGRKIIGNKPASGTEILDELGQEQMETGSLIVYTSADSVLQI
AAHEEVVPLDELYKICKIARELTLDEKYMVGRVIARPFVGEPGNFTRTPNRHDYALKPFGRTVMNELKDSDYDVIAIGKI
SDIYDGEGVTESLRTKSNMDGMDKLVDTLNMDFTGLSFLNLVDFDALFGHRRDPQGYGEALQEYDARLPEVFAKLKEDDL
LLITADHGNDPIHPGTDHTREYVPLLAYSPSMKEGGQELPLRQTFADIGATVAENFGVKMPEYGTSFLNELKK