The total fold depends on a number of interactions between the two repetitions, therefore they don't actually belong in separate domains. CV-N has a complex fold composed of a duplication of a tandem repeat of two homologous motifs comprising three-stranded beta-sheet and beta-hairpins.
The overall folding structure depends on interactions between the two repeating units, meaning they don't function as distinct entities.  CV-N has a complex fold with a duplicated tandem repeat of two homologous motifs forming a three-stranded beta-sheet and beta-hairpin structures.