>1a8r_B mol:protein length:221 GTP CYCLOHYDROLASE I PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLLNLDLADDSL METPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVTVRDITLTSTCESHFVTID GKATVAYIPKDSVIGLSKINRIVQFFAQRPQVQERLTQQILIALQTLLGTNNVAVSIDA VHYCVKARGIRDATSATTTTSLGGLFKSSQNTRHEFLRAVRHHN