Glycine Encephalopathy 1, also known as non-ketotic hyperglycinemia, is related to atypical glycine encephalopathy and glycine encephalopathy 2. An important gene associated with Glycine Encephalopathy 1 is GLDC (Glycine Decarboxylase), and among its related pathways/superpathways are Regulation of expression of SLITs and ROBOs and Glyoxylate metabolism and glycine degradation. Affiliated tissues include brain and spinal cord.