The identification of LCD motifs required for CIITA function brings to light a previously undefined role of these motifs in CIITA function .
the identification of lcd motifs required for ciita function brings to light a previously undefined role of these motifs in ciita function .
O O O B-protein_domain_or_region I-protein_domain_or_region O O B-protein_molecule O O O O O O O O O O O O B-protein_molecule O O