Mitochondrial Complex Ii Deficiency, Nuclear Type 1, also known as mc1dn2, is related to mitochondrial complex ii deficiency and paraganglioma. An important gene associated with Mitochondrial Complex Ii Deficiency, Nuclear Type 1 is SDHA (Succinate Dehydrogenase Complex Flavoprotein Subunit A), and among its related pathways/superpathways are Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. and glycolysis (BioCyc). The drugs Azacitidine and D-Phenylalanine have been mentioned in the context of this disorder. Affiliated tissues include liver and heart, and related phenotypes are dysarthria and hypotonia