TAFs are components of the transcription factor IID (TFIID) complex that is essential for mediating regulation of RNA polymerase transcription. May be involved in polycomb repressive complex 2 (PRC2) mediated repression. Component of the TFIID complex. TFIID is composed of TATA binding protein (TBP) and a number of TBP-associated factors (TAFs) whose MWs range from 14-217 kDa. Interacts with TAF4B, TAF8, TAF9, TAF10, TAF11, TAF12, TAF12B and TAF14. Interacts with the members of the polycomb repressive complex 2 (PRC2) MEA and EZA1. At the torpedo stage, localized both in the nucleus and at the plasma membrane. Expressed in roots, leaves and inflorescences. Detected early after fertilization in the zygotic embryo and free endosperm nuclei. Expression continues in the embryo at the heart and torpedo stages, but is restricted to the chalazal nuclei in endosperm before cellularization. At maturity, expressed mainly in the embryo epidermis and in the vascular tissue. Embryo lethal when homozygote. Belongs to the TAF13 family.