?:definition
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OBSOLETE. Selective and non-covalent interaction of a viral protein with a member of the TFIIB-class of host transcription factors, which contributes to the viral-suppression of assembly of the RNA polymerase II preinitiation complex (PIC) at an RNA polymerase II promoter region of a host DNA template. [GOC:vw, PMID:18768974]
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