has material basis in germline mutation in MAOA inborn disorder of amino acid metabolism Brunner syndrome https://github.com/monarch-initiative/mondo/issues/4521 https://www.malacards.org/card/brunner_syndrome BRNRS Monoamine oxidase-A deficiency is a very rare recessive X-linked biogenic amine metabolism disorder characterized clinically by mild intellectual deficit, impulsive aggressiveness, and sometimes violent behavior and presenting from childhood. GARD:0003531 monoamine oxidase A deficiency Brunner syndrome, X-linked recessive MONDO:0010379 Orphanet:3057 Brunner syndrome OMIM:300615 SCTID:718210003 MESH:C563156 antisocial behavior, X-linked recessive UMLS:C0796275 MEDGEN:208683 DOID:0060693 inborn disorder of neurotransmitter metabolism and transport X-linked recessive disease