somatic cell hybrids containing the human 10q+ chromosome resulting from the translocation retain the human terminal deoxynucleotidyltransferase gene mapped at 10q23-q24 and the diversity and joining , d delta 2-j delta 1 , regions of the tcr delta chain , but not the v alpha region ( variable region of the tcr alpha chain ) , demonstrating that the split occurred within the v alpha-d delta 2 region .
C1520266
10q
C1520280
10q23-q24