10974
When the EKLF-/- cells were injected into blastocysts, they did not contribute at a detectable level to the mature erythrocyte compartment of the chimeric animals , based on analysis of glucose phosphate isomerase-1 (GPI-1) isozymes and hemoglobins that distinguish ES cell-derived erythrocytes from host blastocyst-derived erythrocytes .
 ( protein: glucose phosphate isomerase-1 (GPI-1) isozymes, None) , ( cell line: EKLF-/- cells, None) , ( cell type: blastocyst-derived erythrocytes, None) , ( cell type: ES cell-derived erythrocytes, 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: glucose phosphate isomerase-1 (GPI-1) isozymes, None) , ( cell line: EKLF-/- cells, None) , ( cell type: blastocyst-derived erythrocytes, None) , ( cell type: ES cell-derived erythrocytes, None) 