_:vb50941239 "url:https://ghr.nlm.nih.gov/condition/3-methylcrotonyl-coa-carboxylase-deficiency"^^ . _:vb50941239 "A 3-Methylcrotonyl-CoA carboxylase deficiency that has_material_basis_in homozygous or compound heterozygous mutation in the gene encoding the alpha subunit of 3-methylcrotonyl-CoA carboxylase on chromosome 3q27."^^ . _:vb50941239 . _:vb50941239 . _:vb50941239 . _:vb50941239 . _:vb50941239 .