Question: Which nutrient is Mo-nitrogenase MoFe protein subunit NifK    RSP_0539 an encoding of?
Answer: Mo-nitrogenase MoFe protein subunit NifK RSP_0539
Answer sentence: mo-nitrogenase mofe protein subunit nifk rsp_0539 is an encoding of mo-nitrogenase mofe protein subunit nifk rsp_0539.