>sp|Q3ATZ1|PUR9_CHLCH Bifunctional purine biosynthesis protein PurH OS=Chlorobium chlorochromatii GN=purH MSDPVIKRALVSVSDKTGIVDFCRELSELGVEIFSTGGTLKTLQDAGIAAASISTITGFP EIMDGRVKTLHPKIHGGLLAVRENANHVKQAADNGISFIDLVVVNLYPFEATVAKPNVSF EDAIENIDIGGPSMLRSAAKNNESVTVVTDSADYALVLQEMRANNGATTRATRLHLALKV FELTSRYDRAIATYLAGKVSAAEAAASTMSVQLAKELDMRYGENPHQNAGLYRLTDSNGT RSFEEFFEKLHGKELSYNNMLDIAAATSLIEEFRGEEPTVVIIKHTNPCGVAQASSLVDA WHRAFSTDTQAPFGGIVAFNRPLDMAAAQAVNEIFTEILIAPAFEDGVLELLMKKKDRRL VVQKKALPQSGWEFKSTPFGMLVQERDSKIVAKEDLKVVTKRQPTEAEIADLMFAWKICK HIKSNTILYVKNRQTYGVGAGQMSRVDSSKIARWKASEVNLDLHGSVVASDAFFPFADGL LAAAEAGVTAVIQPGGSIRDNEVIEAADANNLAMVFTGMRHFKH