Protein: Transcription initiation factor TFIID subunit 12 (TBP-associated factor 12) (O13722)
Organism: Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
Function: Functions as a component of the DNA-binding general transcription factor complex TFIID and the transcription regulatory histone acetylation (HAT) complexes SAGA, SALSA and SLIK. Binding of TFIID to a promoter (with or without TATA element) is the initial step in preinitiation complex (PIC) formation. TFIID plays a key role in the regulation of gene expression by RNA polymerase II through different activities such as transcription activator interaction, core promoter recognition and selectivity, TFIIA and TFIIB interaction, chromatin modification (histone acetylation), facilitation of DNA opening and initiation of transcription. SAGA is involved in RNA polymerase II-dependent transcriptional regulation. At the promoters, SAGA is required for recruitment of the basal transcription machinery. It influences RNA polymerase II transcriptional activity through different activities such as TBP interaction and promoter selectivity, interaction with transcription activators, and chromatin modification through histone acetylation (gcn5) and deubiquitination (ubp8). SAGA acetylates nucleosomal histone H3 to some extent (to form H3K9ac, H3K14ac, H3K18ac and H3K23ac). SAGA interacts with DNA via upstream activating sequences (UASs). SALSA, an altered form of SAGA, may be involved in positive transcriptional regulation. SLIK is proposed to have partly overlapping functions with SAGA. It preferentially acetylates methylated histone H3 (By similarity).
Subcellular location: Nucleus {ECO:0000269|PubMed:16823372}.
Sequence: MNGQHSSPGTPVQRPSAGPVNQAQFSQQRTNQLTSLLHTMTMYQQLAQNVGLNTPQGQVYLLQAQTIRRQLQGHAQSGQLPNQQLLQQLQSNGALQQGTPEPSNTRPRPQLNAQEQTMLLVRHRQLQTAQNYLTEMKEALGRIKNELSTNERLDTSAREALVKQESELTVKIAQFTAAISNGIRSIQQLQNRQASSANGNNTGTSTPVNASTDTRKSTASTPQLQQTQAQANAPQQRINPETSSVPETPVGVSAANVSNESTELATSATQQSGLANNVEKSQTPSYMSANHLPKVDSKSPIPFSVPPSRATLTGGYASGSIGLSTPGLSRAPHYELDNGNRLLSKRKLHDLLQQIDSEEKIEPEVEELLLEIADEFVESVTNFACRLAKHRKSDTLDVRDVQLHLERNWNIRLPGFASDDIVKSARKTGPTPSYQQKQNAIGTAKSLNKD
InterPro domains: - IPR009072: Histone-fold (homologous_superfamily) [338-412]
- IPR037794: Transcription initiation factor TFIID subunit 12 (family) [10-444]
- IPR003228: Transcription initiation factor TFIID subunit 12 domain (domain) [340-413]
Interaction partners: - SAGA complex subunit Spt3
- SAGA complex subunit Sgf29
- SAGA complex/transcription factor TFIID complex subunit Taf9
- SAGA complex subunit Ngg1
- SAGA complex subunit Hfi1
- Transcription initiation factor TFIID subunit 7
- Transcription initiation factor TFIID subunit 4
- SAGA complex subunit Sgf73
- Transcription initiation factor TFIID subunit 2
- SAGA complex/transcription factor TFIID complex subunit Taf6
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0140223 (general transcription initiation factor activity), GO:0003682 (chromatin binding), GO:0005515 (protein binding), GO:0016251 (RNA polymerase II general transcription initiation factor activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0044249 (cellular biosynthetic process), GO:0006725 (cellular aromatic compound metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0006139 (nucleobase-containing compound metabolic process), GO:0043170 (macromolecule metabolic process), GO:0046483 (heterocycle metabolic process), GO:0009059 (macromolecule biosynthetic process), GO:1901362 (organic cyclic compound biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0090304 (nucleic acid metabolic process), GO:0019438 (aromatic compound biosynthetic process), GO:0010467 (gene expression), GO:0018130 (heterocycle biosynthetic process), GO:0034654 (nucleobase-containing compound biosynthetic process), GO:0016070 (RNA metabolic process), GO:0032774 (RNA biosynthetic process), GO:0097659 (nucleic acid-templated transcription), GO:0006351 (DNA-templated transcription), GO:0006352 (DNA-templated transcription initiation), GO:0006367 (transcription initiation at RNA polymerase II promoter), GO:0006366 (transcription by RNA polymerase II)
Cellular Component (CC): GO:0005575 (cellular component), GO:0032991 (protein-containing complex), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0000785 (chromatin), GO:0005829 (cytosol), GO:0140535 (intracellular protein-containing complex), GO:1902494 (catalytic complex), GO:0140513 (nuclear protein-containing complex), GO:0005737 (cytoplasm), GO:0005667 (transcription regulator complex), GO:0031974 (membrane-enclosed lumen), GO:0005654 (nucleoplasm), GO:0030880 (RNA polymerase complex), GO:1990234 (transferase complex), GO:0031248 (protein acetyltransferase complex), GO:1905368 (peptidase complex), GO:0043229 (intracellular organelle), GO:0000123 (histone acetyltransferase complex), GO:0090575 (RNA polymerase II transcription regulator complex), GO:0043228 (non-membrane-bounded organelle), GO:0043233 (organelle lumen), GO:0055029 (nuclear DNA-directed RNA polymerase complex), GO:0016591 (RNA polymerase II, holoenzyme), GO:0043227 (membrane-bounded organelle), GO:0000428 (DNA-directed RNA polymerase complex), GO:0070461 (SAGA-type complex), GO:0005669 (transcription factor TFIID complex), GO:0043231 (intracellular membrane-bounded organelle), GO:0043232 (intracellular non-membrane-bounded organelle), GO:0061695 (transferase complex, transferring phosphorus-containing groups), GO:1902493 (acetyltransferase complex), GO:0070013 (intracellular organelle lumen), GO:0000124 (SAGA complex), GO:0005634 (nucleus), GO:0031981 (nuclear lumen), GO:0005694 (chromosome)