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:  BACKGROUND : Recent iterative methods for sequence alignment have indicated that the 380 kDa motor unit of dynein belongs to the AAA class of chaperone - like ATPases .

Answer: AAA class


Question:  A rare tRNA - Arg ( CCU ) that regulates Ty1 element ribosomal frameshifting is essential for Ty1 retrotransposition in Saccharomyces cerevisiae .

Answer: Ty1 element


Question:  We have produced the Ure2 protein to high yield in Escherichia coli from a synthetic gene .

Answer:
Ure2 protein