1331
By fusing lymphoblastoid cells of an AGS patient that exhibited a microdeletion in the short arm of Chr 20 encompassing bands p11.23 to p12.3 with rodent thermosensitive mutant cells ( CHOtsH1-1 ) deficient in-leucyl-tRNA synthetase , we isolated a somatic cell hybrid segregating the deleted human Chr 20 .
 ( DNA: Chr 20, None) , ( DNA: short arm of Chr 20, None) , ( DNA: Chr 20, None) , ( cell line: somatic cell hybrid, None) , ( cell line: rodent thermosensitive mutant cells, None) , ( protein: in-leucyl-tRNA synthetase, None) , ( DNA: p11.23 to p12.3, None) , ( cell line: CHOtsH1-1, None) , ( cell type: lymphoblastoid cells, 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:
 ( DNA: Chr 20, None) , ( DNA: short arm of Chr 20, None) , ( DNA: Chr 20, None) , ( cell line: somatic cell hybrid, None) , ( cell line: rodent thermosensitive mutant cells, None) , ( protein: in-leucyl-tRNA synthetase, None) , ( DNA: p11.23 to p12.3, None) , ( cell line: CHOtsH1-1, None) , ( cell type: lymphoblastoid cells, None) 