>1a9c_N mol:protein length:221 GTP CYCLOHYDROLASE I PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSL METPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTSEHHFVTID GKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDA VHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN