Eleanor Williams Phenotypes for gene: BCS1L were changed from Isolated complex III deficiency; Mitochondrial complex III deficiency, nuclear type 1, 124000Leigh syndrome, 256000Bjornstad syndrome, 262000GRACILE syndrome, 603358; Mitochondrial Diseases; Mitochondrial Respiratory Chain Complex III Deficiency to Isolated complex III deficiency; Mitochondrial complex III deficiency, nuclear type 1, 124000; Leigh syndrome, 256000; Bjornstad syndrome, 262000; GRACILE syndrome, 603358; Mitochondrial Diseases; Mitochondrial Respiratory Chain Complex III Deficiency