7270
Freshly isolated CD34(+) cells expressed CD34 , c-kit , PU.1 , and GATA-2 but did not express CD36 , erythropoietin receptor ( EpoR ), SCL/Tal1 , EKLF , NF-E2, GATA-1 , or glyocophorin A ( GPA ).
 ( protein: SCL/Tal1, None) , ( protein: GATA-1, None) , ( protein: erythropoietin receptor, None) , ( protein: GPA, None) , ( protein: PU.1, None) , ( protein: c-kit, None) , ( protein: EKLF, None) , ( protein: EpoR, None) , ( protein: GATA-2, None) , ( cell type: CD34(+) cells, None) , ( protein: CD36, None) , ( protein: erythropoietin, None) , ( protein: glyocophorin A, None) , ( protein: CD34, 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: SCL/Tal1, None) , ( protein: GATA-1, None) , ( protein: erythropoietin receptor, None) , ( protein: GPA, None) , ( protein: PU.1, None) , ( protein: c-kit, None) , ( protein: EKLF, None) , ( protein: EpoR, None) , ( protein: GATA-2, None) , ( cell type: CD34(+) cells, None) , ( protein: CD36, None) , ( protein: erythropoietin, None) , ( protein: glyocophorin A, None) , ( protein: CD34, None) 