Descriptions

The TATA binding protein (TBP) is required for the expression of nearly all genes and is highly regulated both positively and negatively. Autoinhibition of TBP through dimerization contributes to transcriptional repression. In the absence of DNA, the conserved core of TBP crystallizes as a dimer, which occludes its DNA binding concave surface to prevent unregulated gene expression.

Autoinhibitory domains (AIDs)

Target domain

264-446 (TATA binding domain)

Relief mechanism

Partner binding, Others

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for B2D6P4

Entry ID Method Resolution Chain Position Source
AF-B2D6P4-F1 Predicted AlphaFoldDB

No variants for B2D6P4

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for B2D6P4

No associated diseases with B2D6P4

No regional properties for B2D6P4

Type Name Position InterPro Accession
No domain, repeats, and functional sites for B2D6P4

Functions

Description
EC Number
Subcellular Localization
  • Nucleus
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
chromatin The ordered and organized complex of DNA, protein, and sometimes RNA, that forms the chromosome.
nucleus 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.

2 GO annotations of molecular function

Name Definition
DNA binding Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
general transcription initiation factor activity A molecular function required for core promoter activity that mediates the assembly of the RNA polymerase holoenzyme at promoter DNA to form the pre-initiation complex (PIC). General transcription factors (GTFs) bind to and open promoter DNA, initiate RNA synthesis and stimulate the escape of the polymerase from the promoter. Not all subunits of the general transcription factor are necessarily present at all promoters to initiate transcription. GTFs act at each promoter, although the exact subunit composition at individual promoters may vary.

5 GO annotations of biological process

Name Definition
DNA-templated transcription initiation The initial step of transcription, consisting of the assembly of the RNA polymerase preinitiation complex (PIC) at a gene promoter, as well as the formation of the first few bonds of the RNA transcript. Transcription initiation includes abortive initiation events, which occur when the first few nucleotides are repeatedly synthesized and then released, and ends when promoter clearance takes place.
embryo development ending in birth or egg hatching The process whose specific outcome is the progression of an embryo over time, from zygote formation until the end of the embryonic life stage. The end of the embryonic life stage is organism-specific and may be somewhat arbitrary; for mammals it is usually considered to be birth, for insects the hatching of the first instar larva from the eggshell.
negative regulation of transcription by RNA polymerase II Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
positive regulation of protein phosphorylation Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
positive regulation of transcription by RNA polymerase II Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.

22 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P26356 TBP1 TATA-box-binding protein 1 Triticum aestivum (Wheat) PR
Q02879 TBP2 TATA-box-binding protein 2 Triticum aestivum (Wheat) PR
Q2HJ52 TBP TATA-box-binding protein Bos taurus (Bovine) PR
O13270 TBP TATA-box-binding protein Gallus gallus (Chicken) PR
A6H907 TBPL2 TATA box-binding protein-like 2 Pan troglodytes (Chimpanzee) PR
Q27896 Trf TBP-related factor Drosophila melanogaster (Fruit fly) PR
Q6SJ96 TBPL2 TATA box-binding protein-like 2 Homo sapiens (Human) PR
P20226 TBP TATA-box-binding protein Homo sapiens (Human) EV
P50158 TBP1 TATA-box-binding protein 1 Zea mays (Maize) PR
Q6SJ95 Tbpl2 TATA box-binding protein-like 2 Mus musculus (Mouse) PR
P29037 Tbp TATA-box-binding protein Mus musculus (Mouse) PR
P26357 TBP TATA-box-binding protein Solanum tuberosum (Potato) PR
A6H909 Tbpl2 TATA box-binding protein-like 2 Rattus norvegicus (Rat) PR
Q8W0W4 TBP2 TATA-binding protein 2 Oryza sativa subsp japonica (Rice) PR
O45211 Tbp TATA-box-binding protein Bombyx mori (Silk moth) PR
Q42808 TBP1 TATA-box-binding protein Glycine max (Soybean) (Glycine hispida) PR
P28148 TBP2 TATA-box-binding protein 2 Arabidopsis thaliana (Mouse-ear cress) PR
P28147 TBP1 TATA-box-binding protein 1 Arabidopsis thaliana (Mouse-ear cress) PR
Q28GG8 tbp TATA-box-binding protein Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) PR
Q28DH2 tbpl2 TATA box-binding protein-like 2 Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) PR
Q7SXL3 tbp TATA-box-binding protein Danio rerio (Zebrafish) (Brachydanio rerio) PR
Q1JPY4 tbpl2 TATA box-binding protein-like 2 Danio rerio (Zebrafish) (Brachydanio rerio) PR
10 20 30 40 50 60
MQMGDHQMMG NQRYYRTYVQ KVMPAQAGGA VSQNATYVQT AGIRTVHHDG NGQQRIVQLP
70 80 90 100 110 120
PGVRQIQQNG VGPAYVRQVP GGQPMQVNFG HPGTIAGRNV AVGVQMRPVQ GHNVQQGYQR
130 140 150 160 170 180
QQVANQIQQQ NRAVFMAQNQ QGQQQISYAQ AQHRQQQQNQ QQHHQQPQHF NHPSQQNQMI
190 200 210 220 230 240
MQHRQPQMHH NQQHQMVQPQ MTRHQMAQHH AQQPHPQIYV PRDMNLAVPL REPSPEPIPV
250 260 270 280 290 300
KIEVPDVPPE GTSAANEEPM PDDGDIDIQI RNVVCNYTLP LHIDLRKLAM NTHNVTYERE
310 320 330 340 350 360
KGVMMKQKRS PGCYIKVYSS GKVYIVGCRS EADCKRAARS IARHVQRVMG KTKERVSIRN
370 380 390 400 410 420
YRVNNVLATC RLPFGIKIEE VAAKYPSEST YEPELSVGLV WRSVTPKATL RIHTTGSITV
430 440 450 460 470 480
TGAQSEADVL EVLSKIYPIV LEFRCLERAK GNVAAQKKRK RKAPVNRGPP IKRERFDDSN
490 500
YRNSGVINNQ VYFSDEDEDL YDELDLEE