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.

Input: Consider Input: The liver - specific sequence contains unique consensus sites for phosphorylation by cyclic AMP - dependent protein kinase and by protein kinase C .

Output: protein kinase C

Input: Consider Input: Transient transfection assays indicated that the ( - 4551 ) UCP1 - CAT construct , containing the 5 ' - regulatory region of the rat ucp - 1 gene , was activated by PPARalpha co - transfection in a dose - dependent manner and this activation was potentiated by Wy 14 , 643 and retinoid X receptor alpha .

Output: retinoid X receptor

Input: Consider Input: Moreover , such mutations lead to a dramatic transition in chromatin structure : the DNase I hypersensitive region is replaced by two stable , sequence - positioned nucleosomes .
Output: DNase I