This domain is found at the C-terminus of protein kinase G and contains a tetratricopeptide repeat (TPR) [1].

1: Structural basis for the specific inhibition of protein kinase G, a virulence factor of Mycobacterium tuberculosis. Scherr N, Honnappa S, Kunz G, Mueller P, Jayachandran R, Winkler F, Pieters J, Steinmetz MO; Proc Natl Acad Sci U S A. 2007;104:12151-12156. PMID:17616581