4699
Based on the presence of T cell receptor-beta ( TcR-beta ) gene rearrangements in L428 and HDLM-1 cells , the expression of CD2 in HDLM-1 cells , and the presence of immunoglobulin heavy-chain ( IgH ) gene rearrangement in KM-H2 cells , some researchers have concluded that these long-term cell lines derived from patients with Hodgkin's disease are lymphoid in nature.
 ( protein: IgH, None) , ( DNA: immunoglobulin heavy-chain ( IgH ) gene rearrangement, None) , ( protein: T cell receptor-beta, None) , ( DNA: T cell receptor-beta ( TcR-beta ) gene rearrangements, None) , ( cell line: KM-H2 cells, None) , ( cell line: HDLM-1 cells, None) , ( cell line: long-term cell lines, None) , ( protein: TcR-beta, None) , ( protein: CD2, None) , ( protein: immunoglobulin heavy-chain, 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: IgH, None) , ( DNA: immunoglobulin heavy-chain ( IgH ) gene rearrangement, None) , ( protein: T cell receptor-beta, None) , ( DNA: T cell receptor-beta ( TcR-beta ) gene rearrangements, None) , ( cell line: KM-H2 cells, None) , ( cell line: HDLM-1 cells, None) , ( cell line: long-term cell lines, None) , ( protein: TcR-beta, None) , ( protein: CD2, None) , ( protein: immunoglobulin heavy-chain, None) 