This entry represents the CBP66 component of the trypanasome nuclear cap binding complex. Trypanosomes have a different cap 4 structure for mRNAs [1]. CBP66 is part of the complex that recognises this cap. This domain adopts a beta-grasp like structure.

1: Trypanosome mRNAs have unusual "cap 4" structures acquired by addition of a spliced leader. Perry KL, Watkins KP, Agabian N; Proc Natl Acad Sci U S A. 1987;84:8190-8194. PMID:3120186

2: Novel and essential subunits in the 300-kilodalton nuclear cap binding complex of Trypanosoma brucei. Li H, Tschudi C; Mol Cell Biol. 2005;25:2216-2226. PMID:15743819