This domain is found at the N-terminus of translin-associated factor X-interacting protein, a protein which may play a role in spermatogenesis [1].

1: Identification and characterization of cDNAs encoding four novel proteins that interact with translin associated factor-X. Bray JD, Chennathukuzhi VM, Hecht NB; Genomics. 2002;79:799-808. PMID:12036294