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.

Q:  The NrfC polypeptide , M ( r ) 24 , 567 , contains 16 cysteine residues arranged in four clusters typical of the CooF super - family of non - haem iron - sulphur proteins .

A: NrfC polypeptide
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Q:  We report the cloning of the ade1 gene on a 4 . 4 kb Sau3A insert in the yeast shuttle vector pWH5 .

A: ade1 gene
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Q:  Interestingly , these " activation - defective " mutants segregated into two classes : 1 ) those that were unable to form dimers but that could still form higher order oligomers and transform cells , and 2 ) those that were defective for PDGF - R binding and were transformation - incompetent .

A:
PDGF - R
****