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We describe the isolation of human LH-2 , a putative transcription factor containing two cysteine -rich regions ( LIM domains ) and a homeobox (Hox) DNA-binding domain .
 ( protein: homeobox (Hox) DNA-binding domain, None) , ( protein: putative transcription factor, None) , ( protein: human LH-2, None) , ( protein: cysteine -rich regions, None) , ( protein: LIM domains, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: homeobox (Hox) DNA-binding domain, None) , ( protein: putative transcription factor, None) , ( protein: human LH-2, None) , ( protein: cysteine -rich regions, None) , ( protein: LIM domains, None) 