The proximal sequence element ( PSE ) -binding transcription factor ( PTF ) , which binds the PSE of both RNA polymerase II -and RNA polymerase III -transcribed mammalian small nuclear RNA ( snRNA ) genes , is essential for their transcription .
the proximal sequence element ( pse ) -binding transcription factor ( ptf ) , which binds the pse of both rna polymerase ii -and rna polymerase iii -transcribed mammalian small nuclear rna ( snrna ) genes , is essential for their transcription .
O B-protein_complex I-protein_complex I-protein_complex I-protein_complex I-protein_complex I-protein_complex I-protein_complex I-protein_complex I-protein_complex O B-protein_complex O O O O O B-DNA_domain_or_region O O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule I-protein_molecule I-protein_molecule O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O O O O O