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.

Ex Input:
 The dopamine D1 dopamine receptor antagonist SCH 23390 dose dependently ( 7 . 5 - 30 micrograms / kg s . c . ) antagonized the stimulant locomotor effect on both drugs but did not prevent their antiimmobility effect on the behavioral despair test .

Ex Output:
dopamine receptor


Ex Input:
 The N - terminal sequence of the extracellular MEP20 , TKVAS , was found at aa 194 - 198 within the ORF .

Ex Output:
extracellular MEP20


Ex Input:
 The effect of the negative regulatory element is negated by the viral IE2 protein ( L .

Ex Output:

viral IE2 protein