disease causes dysfunction of TUBB2B autosomal recessive disease Uner Tan Syndrome https://github.com/monarch-initiative/mondo/issues/1571 https://github.com/monarch-initiative/mondo/issues/6752 recessive quadrupedalism MONDO:0100144 A tubulinopathy with material basis in TUBB2B that is characterized by variations in R390Q, quadrupedal locomotion, cerebellar hypoplasia and does not have basal ganglia malformations. tubulinopathy hereditary neurological disease