This domain, found in telomeric repeat-binding factor 2, binds to the C-terminus of repressor activator protein 1 (RAP1) (telomeric repeat-binding factor 2-interacting protein 1) [1].

1: A conserved motif within RAP1 has diversified roles in telomere protection and regulation in different organisms. Chen Y, Rai R, Zhou ZR, Kanoh J, Ribeyre C, Yang Y, Zheng H, Damay P, Wang F, Tsujii H, Hiraoka Y, Shore D, Hu HY, Chang S, Lei M; Nat Struct Mol Biol. 2011;18:213-221. PMID:21217703