General Information of the Protein
Protein ID
PT03307
Protein Name
Transcription initiation factor TFIID subunit 1
Secondarily
Protein Name
Cell cycle gene 1 protein
TBP-associated factor 250 kDa
Transcription initiation factor TFIID 250 kDa subunit
Gene Name
TAF1
Secondarily
Gene Name
BA2R
CCG1
CCGS
TAF2A
Sequence
MGPGCDLLLRTAATITAAAIMSDTDSDEDSAGGGPFSLAGFLFGNINGAGQLEGESVLDDECKKHLAGLGALGLGSLITELTANEELTGTDGALVNDEGWVRSTEDAVDYSDINEVAEDESRRYQQTMGSLQPLCHSDYDEDDYDADCEDIDCKLMPPPPPPPGPMKKDKDQDSITGVSENGEGIILPSIIAPSSLASEKVDFSSSSDSESEMGPQEATQAESEDGKLTLPLAGIMQHDATKLLPSVTELFPEFRPGKVLRFLRLFGPGKNVPSVWRSARRKRKKKHRELIQEEQIQEVECSVESEVSQKSLWNYDYAPPPPPEQCLSDDEITMMAPVESKFSQSTGDIDKVTDTKPRVAEWRYGPARLWYDMLGVPEDGSGFDYGFKLRKTEHEPVIKSRMIEEFRKLEENNGTDLLADENFLMVTQLHWEDDIIWDGEDVKHKGTKPQRASLAGWLPSSMTRNAMAYNVQQGFAATLDDDKPWYSIFPIDNEDLVYGRWEDNIIWDAQAMPRLLEPPVLTLDPNDENLILEIPDEKEEATSNSPSKESKKESSLKKSRILLGKTGVIKEEPQQNMSQPEVKDPWNLSNDEYYYPKQQGLRGTFGGNIIQHSIPAVELRQPFFPTHMGPIKLRQFHRPPLKKYSFGALSQPGPHSVQPLLKHIKKKAKMREQERQASGGGEMFFMRTPQDLTGKDGDLILAEYSEENGPLMMQVGMATKIKNYYKRKPGKDPGAPDCKYGETVYCHTSPFLGSLHPGQLLQAFENNLFRAPIYLHKMPETDFLIIRTRQGYYIRELVDIFVVGQQCPLFEVPGPNSKRANTHIRDFLQVFIYRLFWKSKDRPRRIRMEDIKKAFPSHSESSIRKRLKLCADFKRTGMDSNWWVLKSDFRLPTEEEIRAMVSPEQCCAYYSMIAAEQRLKDAGYGEKSFFAPEEENEEDFQMKIDDEVRTAPWNTTRAFIAAMKGKCLLEVTGVADPTGCGEGFSYVKIPNKPTQQKDDKEPQPVKKTVTGTDADLRRLSLKNAKQLLRKFGVPEEEIKKLSRWEVIDVVRTMSTEQARSGEGPMSKFARGSRFSVAEHQERYKEECQRIFDLQNKVLSSTEVLSTDTDSSSAEDSDFEEMGKNIENMLQNKKTSSQLSREREEQERKELQRMLLAAGSAASGNNHRDDDTASVTSLNSSATGRCLKIYRTFRDEEGKEYVRCETVRKPAVIDAYVRIRTTKDEEFIRKFALFDEQHREEMRKERRRIQEQLRRLKRNQEKEKLKGPPEKKPKKMKERPDLKLKCGACGAIGHMRTNKFCPLYYQTNAPPSNPVAMTEEQEEELEKTVIHNDNEELIKVEGTKIVLGKQLIESADEVRRKSLVLKFPKQQLPPKKKRRVGTTVHCDYLNRPHKSIHRRRTDPMVTLSSILESIINDMRDLPNTYPFHTPVNAKVVKDYYKIITRPMDLQTLRENVRKRLYPSREEFREHLELIVKNSATYNGPKHSLTQISQSMLDLCDEKLKEKEDKLARLEKAINPLLDDDDQVAFSFILDNIVTQKMMAVPDSWPFHHPVNKKFVPDYYKVIVNPMDLETIRKNISKHKYQSRESFLDDVNLILANSVKYNGPESQYTKTAQEIVNVCYQTLTEYDEHLTQLEKDICTAKEAALEEAELESLDPMTPGPYTPQPPDLYDTNTSLSMSRDASVFQDESNMSVLDIPSATPEKQVTQEGEDGDGDLADEEEGTVQQPQASVLYEDLLMSEGEDDEEDAGSDEEGDNPFSAIQLSESGSDSDVGSGGIRPKQPRMLQENTRMDMENEESMMSYEGDGGEASHGLEDSNISYGSYEEPDPKSNTQDTSFSSIGGYEVSEEEEDEEEEEQRSGPSVLSQVHLSEDEEDSEDFHSIAGDSDLDSDE
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Organism
Homo sapiens, Human
Protein Classification
Enzyme
Function
The TFIID basal transcription factor complex plays a major role in the initiation of RNA polymerase II (Pol II)-dependent transcription (PubMed:33795473). TFIID recognizes and binds promoters with or without a TATA box via its subunit TBP, a TATA-box-binding protein, and promotes assembly of the pre-initiation complex (PIC) (PubMed:33795473). The TFIID complex consists of TBP and TBP-associated factors (TAFs), including TAF1, TAF2, TAF3, TAF4, TAF5, TAF6, TAF7, TAF8, TAF9, TAF10, TAF11, TAF12 and TAF13 (PubMed:33795473). TAF1 is the largest component and core scaffold of the TFIID complex, involved in nucleating complex assembly (PubMed:25412659, PubMed:27007846, PubMed:33795473). TAF1 forms a promoter DNA binding subcomplex of TFIID, together with TAF7 and TAF2 (PubMed:33795473). Contains novel N- and C-terminal Ser/Thr kinase domains which can autophosphorylate or transphosphorylate other transcription factors (PubMed:25412659, PubMed:8625415). Phosphorylates TP53 on 'Thr-55' which leads to MDM2-mediated degradation of TP53 (PubMed:25412659). Phosphorylates GTF2A1 and GTF2F1 on Ser residues (PubMed:25412659). Possesses DNA-binding activity (PubMed:25412659). Essential for progression of the G1 phase of the cell cycle (PubMed:11278496, PubMed:15053879, PubMed:2038334, PubMed:8450888, PubMed:8625415, PubMed:9660973, PubMed:9858607). Exhibits histone acetyltransferase activity towards histones H3 and H4 (PubMed:15870300).
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Uniprot ID
Primary ID:
P21675

Secondarily ID:
A5CVC8
A5CVC9
A5CVD0
A5CVD1
B1Q2X3
Q59FZ3
Q6IUZ1
Q70Q86
Q70Q87
Q70T00
Q70T01
Q70T02
Q70T03
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Ensembl ID
ENSG00000147133
HGNC ID
HGNC:11535
Subcellular Location
Nucleus
Map of Molecular Bioactivity Related to the Protein
Map of Molecular Bioactivity Related to the Protein

Protein
Cell Line
Compound

Bioactivity Value:

<= 0.1 μM
> 0.1 μM and <= 10 μM
> 10 μM
Imprecise Activity
Table of Molecular Bioactivities Related to the Protein
Cell Line ID: CL000059 , HuT 78
Compound ID Compound Name Compound Formula
CP0651910
8-(((3R,4R)-3-((1,1-Dioxidotetrahydro-2H-thiopyran-4-yl)-methoxy)-1-methylpiperidin-4-yl)amino)-3-methyl-5-(5-methylpyridin-3-yl)-1,7-naphthyridin-2(1H)-one
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C27H35N5O4S
 1
1
Kd = 1258.93 nM
   TI
   LI
   LO
   TS
CP0717935
rac-8-(((3R,4R)-3-((1,1-Dioxidotetrahydro-2H-thiopyran-4-yl)-methoxy)piperidin-4-yl)amino)-3-methyl-5-(5-methylpyridin-3-yl)quinolin-2(1H)-one
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C27H34N4O4S
 1
1
Kd = 1584.89 nM
   TI
   LI
   LO
   TS
CP0199056
8-[[(3R,4R)-3-(cyclohexylmethoxy)piperidin-4-yl]amino]-3-methyl-5-(5-methylpyridin-3-yl)-1H-1,7-naphthyridin-2-one
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C27H35N5O2
 1
1
Kd = 31622.78 nM
   TI
   LI
   LO
   TS
Biochemical Assays
Compound ID Compound Name Compound Formula
CP0086064
6-(3-hydroxypropyl)-2-(1,3,6-trimethyl-2-oxobenzimidazol-5-yl)benzo[de]isoquinoline-1,3-dione
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C25H23N3O4
 2
1 IC50 = 8 nM
2 IC50 = 17 nM
CP0124641
6-but-3-enyl-4-[1-methyl-6-(morpholine-4-carbonyl)benzimidazol-4-yl]-1H-pyrrolo[2,3-c]pyridin-7-one
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C24H25N5O3
 2
1 IC50 = 10 nM
2 IC50 > 20000 nM
CP0558862
8-[[1-(3-amino-2,2-difluoropropanoyl)piperidin-4-yl]amino]-5-(3,6-dihydro-2H-pyran-4-yl)-3-methyl-1H-1,7-naphthyridin-2-one
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C22H27F2N5O3
 1
1 IC50 = 39.81 nM
CP0651910
8-(((3R,4R)-3-((1,1-Dioxidotetrahydro-2H-thiopyran-4-yl)-methoxy)-1-methylpiperidin-4-yl)amino)-3-methyl-5-(5-methylpyridin-3-yl)-1,7-naphthyridin-2(1H)-one
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C27H35N5O4S
 1
1 Ki = 50.12 nM