TALKEETNA, Al. (KTUU) - A cat named Stubbs has been the mayor of Talkeetna, Alaska for nearly all of his life. It's been that way for more than a decade in the small tourist town that boasts nearly 900 residents.
DAT is an integral membrane protein that removes dopamine from the synaptic cleft and deposits it into surrounding cells, thus terminating the signal of the neurotransmitter. Dopamine underlies several aspects of cognition, including reward, and DAT facilitates regulation of that signal.
Dopamine is an organic chemical of the catecholamine and phenethylamine families that plays several important roles in the human brain and body, as well as elsewhere in biology. Its name derives from its chemical structure: it is an amine formed by removing a carboxyl group from a molecule of L-DOPA.opamine itself is used as precursor in the synthesis of the neurotransmitter norepinephrine and the hormone epinephrine. Dopamine is converted into norepinephrine by the enzyme dopamine Î²-hydroxylase (DBH), with O 2 and L-ascorbic acid as cofactors.