lyase activity | carbon-carbon lyase activity | catalytic activity | carboxy-lyase activity | ornithine decarboxylase activity
eye development | cell differentiation | nervous system development | neurogenesis | generation of neurons | cellular process | neuron development | cellular amino acid metabolic process | cellular biogenic amine metabolic process | cellular nitrogen compound biosynthetic process | cellular nitrogen compound metabolic process | polyamine metabolic process | amine metabolic process | cellular biosynthetic process | eye photoreceptor cell differentiation | system development | nitrogen compound metabolic process | multicellular organism development | animal organ morphogenesis | small molecule metabolic process | putrescine biosynthetic process from ornithine | biosynthetic process | sensory organ development | eye morphogenesis | polyamine biosynthetic process | eye photoreceptor cell development | carboxylic acid metabolic process | neuron differentiation | anatomical structure development | metabolic process | ornithine metabolic process | organic substance metabolic process | animal organ development | amine biosynthetic process | cell development | organic acid metabolic process | anatomical structure morphogenesis | developmental process | putrescine biosynthetic process | photoreceptor cell development | cellular metabolic process | photoreceptor cell differentiation | multicellular organismal process