- The 5-aminoimidazole ribonucleotide-carboxylase structural gene of the methylotrophic yeast Pichia methanolica: cloning, sequencing and homology analysis. Hiep, T.T., Kulikov, V.N., Noskov, V.N., Sizonenko, G.I., Chernoff, Y.O., Pavlov, Y.I. Yeast (1993)