TASK DEFINITION: In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
PROBLEM: Beta 2- but not beta 1-adrenoceptors are involved in desipramine enhancement of aggressive behavior in long-term isolated mice.

SOLUTION: beta 1-adrenoceptors

PROBLEM: Coming full circle: contributions of central and peripheral oxytocin actions to energy balance.

SOLUTION: oxytocin

PROBLEM: Expression and 1,4-dihydropyridine-binding properties of brain L-type calcium channel isoforms.

SOLUTION:
L-type calcium channel