This entry represents the trimerization domain.

1: Many human L1 elements are capable of retrotransposition. Sassaman DM, Dombroski BA, Moran JV, Kimberland ML, Naas TP, DeBerardinis RJ, Gabriel A, Swergold GD, Kazazian HH Jr; Nat Genet 1997;16:37-43. PMID:9140393

2: Functional endogenous LINE-1 retrotransposons are expressed and mobilized in rat chloroleukemia cells. Kirilyuk A, Tolstonog GV, Damert A, Held U, Hahn S, Lower R, Buschmann C, Horn AV, Traub P, Schumann GG; Nucleic Acids Res. 2008;36:648-665. PMID:18073200

3: Non-LTR retrotransposons encode noncanonical RRM domains in their first open reading frame. Khazina E, Weichenrieder O; Proc Natl Acad Sci U S A. 2009;106:731-736. PMID:19139409