EOG8GJ24R GO:0006352 36/104 DNA-templated transcription, initiation biological_process "Any process involved in the assembly of the RNA polymerase preinitiation complex (PIC) at the core promoter region of a DNA template, resulting in the subsequent synthesis of RNA from that promoter. The initiation phase includes PIC assembly and the formation of the first few bonds in the RNA chain, including abortive initiation, which occurs when the first few nucleotides are repeatedly synthesized and then released. The initiation phase ends just before and does not include promoter clearance, or release, which is the transition between the initiation and elongation phases of transcription." [GOC:jid, GOC:txnOH, PMID:18280161] EOG8GJ24R GO:0003743 3/104 translation initiation factor activity molecular_function "Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide." [ISBN:0198506732] EOG8GJ24R GO:0006366 1/104 transcription from RNA polymerase II promoter biological_process "The synthesis of RNA from a DNA template by RNA polymerase II, originating at an RNA polymerase II promoter. Includes transcription of messenger RNA (mRNA) and certain small nuclear RNAs (snRNAs)." [GOC:jl, GOC:txnOH, ISBN:0321000382] EOG8GJ24R GO:0006355 1/104 regulation of transcription, DNA-templated biological_process "Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription." [GOC:go_curators, GOC:txnOH] EOG8GJ24R GO:0000124 1/104 SAGA complex cellular_component "A SAGA-type histone acetyltransferase complex that contains Spt8 (in budding yeast) or a homolog thereof; additional polypeptides include Spt group, consisting of Spt7, Spt3, and Spt20/Ada5, which interact with the TATA-binding protein (TBP); the Ada group, consisting of Ada1, Ada2, Ada3, Ada4/Gcn5, and Ada5/Spt20, which is functionally linked to the nucleosomal HAT activity; Tra1, an ATM/PI-3 kinase-related protein that targets DNA-bound activators for recruitment to promoters; the TBP-associated factor (TAF) proteins, consisting of Taf5, Taf6, Taf9, Taf10, and Taf12, which mediate nucleosomal HAT activity and are thought to help recruit the basal transcription machinery." [PMID:10637607, PMID:17337012] EOG8GJ24R GO:0008134 1/104 transcription factor binding molecular_function "Interacting selectively and non-covalently with a transcription factor, any protein required to initiate or regulate transcription." [ISBN:0198506732] EOG8GJ24R GO:0005515 1/104 protein binding molecular_function "Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules)." [GOC:go_curators] EOG8GJ24R GO:0005634 1/104 nucleus cellular_component "A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent." [GOC:go_curators] EOG8GJ24R GO:0051123 1/104 RNA polymerase II transcriptional preinitiation complex assembly biological_process "The aggregation, arrangement and bonding together of proteins on an RNA polymerase II promoter DNA to form the transcriptional preinitiation complex (PIC), the formation of which is a prerequisite for transcription by RNA polymerase." [GOC:txnOH, PMID:10882737, PMID:15020047] EOG8GJ24R GO:0006367 1/104 transcription initiation from RNA polymerase II promoter biological_process "Any process involved in the assembly of the RNA polymerase II preinitiation complex (PIC) at an RNA polymerase II promoter region of a DNA template, resulting in the subsequent synthesis of RNA from that promoter. The initiation phase includes PIC assembly and the formation of the first few bonds in the RNA chain, including abortive initiation, which occurs when the first few nucleotides are repeatedly synthesized and then released. Promoter clearance, or release, is the transition between the initiation and elongation phases of transcription." [GOC:mah, GOC:txnOH] EOG8GJ24R GO:0005669 1/104 transcription factor TFIID complex cellular_component "A complex composed of TATA binding protein (TBP) and TBP associated factors (TAFs); the total mass is typically about 800 kDa. Most of the TAFs are conserved across species. In TATA-containing promoters for RNA polymerase II (Pol II), TFIID is believed to recognize at least two distinct elements, the TATA element and a downstream promoter element. TFIID is also involved in recognition of TATA-less Pol II promoters. Binding of TFIID to DNA is necessary but not sufficient for transcription initiation from most RNA polymerase II promoters." [GOC:krc, GOC:mah, ISBN:0471953393, ISBN:0879695501]