obsolete TFIIB-class transcription factor binding involved in viral suppression of host transcription initiation from RNA polymerase II promoter true 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. molecular_function The reason for obsoleting this term is that it is too specific. The exact molecular roles of the individual proteins should be captured separately. GO:0039605 2012-07-05T04:16:45Z bf