Abstract:
:T cell acute leukaemias involve a number of different classes of oncogenes. A group of such genes is the RBTN family located on chromosomes 11 and 12. Two members of this family, RBTN1/Ttg-1 and RBTN2/Ttg-2, are located near recurring T cell acute lymphocytic leukaemia-associated translocations. Chromosomal translocations to both RBTN1/Ttg-1 and RBTN2/Ttg-2 involve T cell receptor (TCR) genes as result of an erroneous V(D)J joining process. RBTN1/Ttg-1 and RBTN2/Ttg-2 encode related proteins consisting of two cysteine-rich regions called LIM domains. The fact that LIM domains can be found with or without associated homeodomain led to the suggestion that the LIM domains may function as regulators of transcription, and that alterations of transcription networks, after chromosomal translocations, lead to leukaemia. This is a common feature that has been noted in the activation of transcription factors with a variety of structural motifs that include the basic helix-loop-helix motif and the homeodomain in leukaemias.
journal_name
Semin Cancer Bioljournal_title
Seminars in cancer biologyauthors
Sánchez-García I,Rabbitts THsubject
Has Abstractpub_date
1993-12-01 00:00:00pages
349-58issue
6eissn
1044-579Xissn
1096-3650journal_volume
4pub_type
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