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: Severe impairment of salivation in Na+/K+/2Cl- cotransporter (NKCC1)-deficient mice.

SOLUTION: Na+/K+/2Cl- cotransporter

PROBLEM: Design, Synthesis and Biological Evaluation of Aminoalkylindole Derivatives as Cannabinoid Receptor Ligands with Potential for Treatment of Alcohol Abuse.

SOLUTION: Cannabinoid Receptor

PROBLEM: Valdecoxib: assessment of cyclooxygenase-2 potency and selectivity.

SOLUTION:
cyclooxygenase-2