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.
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Question:  Maximum overexpression of holoenzyme activity was achieved by the inclusion in such plasmids of Salmonella typhimurium cysG , which encodes a uroporphyrinogen III methyltransferase required for the synthesis of siroheme , a cofactor for the hemoprotein .

Answer: uroporphyrinogen III methyltransferase


Question:  We therefore investigated whether the promoter activity of the mouse TRH gene is directly regulated by RA using a transient transfection assay into CV - 1 cells .

Answer: mouse TRH gene


Question:  Amplification of 4q21 - q22 and the MXR gene in independently derived mitoxantrone - resistant cell lines .

Answer:
MXR gene