Neuronopathy, Distal Hereditary Motor, Autosomal Recessive 1, also known as spinal muscular atrophy with respiratory distress 1, is related to distal spinal muscular atrophy 1 and charcot-marie-tooth disease, axonal, type 2e, and has symptoms including constipation and inspiratory stridor. An important gene associated with Neuronopathy, Distal Hereditary Motor, Autosomal Recessive 1 is IGHMBP2 (Immunoglobulin Mu DNA Binding Protein 2). Affiliated tissues include Neural Tube, spinal cord and skeletal muscle, and related phenotypes are neonatal hypotonia and diaphragmatic eventration