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Category:GO:0140223 ! general transcription initiation factor activity

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DAG for GO:0140223id: GO:0140223

name: general transcription initiation factor activity
namespace: molecular_function
def: "A molecular function required for core promoter activity that mediates the assembly of the RNA polymerase holoenzyme at promoter DNA to form the pre-initiation complex (PIC). General transcription factors (GTFs) bind to and open promoter DNA, initiate RNA synthesis and stimulate the escape of the polymerase from the promoter. Not all subunits of the general transcription factor are necessarily present at all promoters to initiate transcription. GTFs act at each promoter, although the exact subunit composition at individual promoters may vary." [GOC:txnOH-2018]
comment: Usage guidance: The distinction between general transcription factors and DNA-binding transcription factors is that the latter modulate the selection of which genes are expressed under specific conditions, while general transcription factors are the constitutive machinery required for transcription initiation.
subset: goslim_drosophila
subset: goslim_generic
synonym: "basal transcription factor activity" EXACT []
synonym: "general transcription factor activity" EXACT []
synonym: "GTF activity" EXACT []
is_a: GO:0003674 ! molecular_function
relationship: part_of: GO:0006351 ! DNA-templated transcription

AmiGO <GOterm>GO:0140223</GOterm>
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