6979
Oestrogen receptor gene polymorphisms in the region encoding the N-terminal portion of the protein are reportedly associated with pathological conditions including breast cancer , hypertension , spontaneous abortion and coronary heart disease .
 ( protein: Oestrogen receptor, None) , ( protein: N-terminal portion, 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: Oestrogen receptor, None) , ( protein: N-terminal portion, None) 