Which deiodinases are best known to be present in brain?
['In brain, the presence of type III iodothyronine deiodinase (D3) seems to be important to maintain homeostasis of T(3) levels.', 'We were able to detect a protein fragment corresponding to the expected molecular mass (30 kDa) for type III deiodinase by means of Western blot analysis. RT-PCR as well as Northern blot analysis confirmed the presence of D3 mRNA in the cerebellum.', "The presence of 5D (type-III) together with our previous report of 5'-deiodinase (type-I in euthyroidism and type-II in hypothyroidism) shows that the isozymes of deiodinases in the neurohypophysis are quite similar to those in the brain."]
['All the 3 deiodinases (Type 1, Type 2 and Type 3 deiodinase) are present in the "brain" but Type 1 deiodinase  is only found in neurohypophysis that cannot be actually considered true "brain tissue".']
['Type 2 deiodinase', 'Type 3 deiodinase']