tokens: CIITA is a positive regulator of class II major histocompatibility complex gene transcription that has been found to be defective in one of the five complementation groups of class II major histocompatibility complex -negative cell lines .
folded_tokens: ciita is a positive regulator of class ii major histocompatibility complex gene transcription that has been found to be defective in one of the five complementation groups of class ii major histocompatibility complex -negative cell lines .
labels: B-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O O O O O O B-protein_complex I-protein_complex I-protein_complex I-protein_complex I-protein_complex O O O O