Serine Deficiency, also known as serine biosynthesis disorders, is related to neu-laxova syndrome 1 and neu-laxova syndrome 2. An important gene associated with Serine Deficiency is PHGDH (Phosphoglycerate Dehydrogenase), and among its related pathways/superpathways are Metabolism and Regulation of expression of SLITs and ROBOs. Affiliated tissues include spinal cord and brain, and related phenotype is vision/eye.