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Protein

Transcription initiation factor IIB

Gene

Gtf2b

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

Functioni

General factor that plays a major role in the activation of eukaryotic genes transcribed by RNA polymerase II.

Cofactori

Zn2+Note: Binds 1 zinc ion per subunit.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi15ZincBy similarity1
Metal bindingi18ZincBy similarity1
Metal bindingi34ZincBy similarity1
Metal bindingi37ZincBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri11 – 42TFIIB-typePROSITE-ProRule annotationAdd BLAST32

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Transcription, Transcription regulation

Keywords - Ligandi

Metal-binding, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Transcription initiation factor IIB
Alternative name(s):
General transcription factor TFIIB
RNA polymerase II alpha initiation factor
Gene namesi
Name:Gtf2b
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi619735. Gtf2b.

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001192961 – 316Transcription initiation factor IIBAdd BLAST316

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei70PhosphoserineBy similarity1
Modified residuei76PhosphoserineBy similarity1
Modified residuei92PhosphoserineBy similarity1

Keywords - PTMi

Phosphoprotein

Proteomic databases

PaxDbiP62916.
PRIDEiP62916.

PTM databases

PhosphoSitePlusiP62916.

Interactioni

Subunit structurei

Associates with TFIID-IIA (DA complex) to form TFIID-IIA-IIB (DAB-complex) which is then recognized by polymerase II. Interacts with the transcription elongation factor TCEA2. Interacts with GPBP1 (By similarity).By similarity

Protein-protein interaction databases

BioGridi249570. 3 interactors.
IntActiP62916. 2 interactors.
STRINGi10116.ENSRNOP00000015033.

Structurei

3D structure databases

ProteinModelPortaliP62916.
SMRiP62916.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Repeati124 – 2001Add BLAST77
Repeati218 – 2942Add BLAST77

Sequence similaritiesi

Belongs to the TFIIB family.Curated
Contains 1 TFIIB-type zinc finger.PROSITE-ProRule annotation

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri11 – 42TFIIB-typePROSITE-ProRule annotationAdd BLAST32

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

eggNOGiKOG1597. Eukaryota.
COG1405. LUCA.
HOGENOMiHOG000108634.
HOVERGENiHBG017914.
InParanoidiP62916.
KOiK03124.
PhylomeDBiP62916.
TreeFamiTF105953.

Family and domain databases

Gene3Di1.10.472.10. 2 hits.
InterProiIPR013763. Cyclin-like.
IPR000812. TFIIB.
IPR023486. TFIIB_CS.
IPR013150. TFIIB_cyclin.
IPR013137. Znf_TFIIB.
[Graphical view]
PANTHERiPTHR11618. PTHR11618. 1 hit.
PfamiPF08271. TF_Zn_Ribbon. 1 hit.
PF00382. TFIIB. 2 hits.
[Graphical view]
PRINTSiPR00685. TIFACTORIIB.
SMARTiSM00385. CYCLIN. 2 hits.
[Graphical view]
SUPFAMiSSF47954. SSF47954. 2 hits.
PROSITEiPS00782. TFIIB. 2 hits.
PS51134. ZF_TFIIB. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P62916-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MASTSRLDAL PRVTCPNHPD AILVEDYRAG DMICPECGLV VGDRVIDVGS
60 70 80 90 100
EWRTFSNDKA TKDPSRVGDS QNPLLSDGDL STMIGKGTGA ASFDEFGNSK
110 120 130 140 150
YQNRRTMSSS DRAMMNAFKE ITTMADRINL PRNIVDRTNN LFKQVYEQKS
160 170 180 190 200
LKGRANDAIA SACLYIACRQ EGVPRTFKEI CAVSRISKKE IGRCFKLILK
210 220 230 240 250
ALETSVDLIT TGDFMSRFCS NLCLPKQVQM AATHIARKAV ELDLVPGRSP
260 270 280 290 300
ISVAAAAIYM ASQASAEKRT QKEIGDIAGV ADVTIRQSYR LIYPRAPDLF
310
PSDFKFDTPV DKLPQL
Length:316
Mass (Da):34,819
Last modified:August 31, 2004 - v1
Checksum:i9CC7E102526C21F9
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X65948 mRNA. Translation: CAA46766.1.
BC085345 mRNA. Translation: AAH85345.1.
PIRiS26299.
RefSeqiNP_112303.1. NM_031041.1.
UniGeneiRn.6109.

Genome annotation databases

GeneIDi81673.
KEGGirno:81673.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X65948 mRNA. Translation: CAA46766.1.
BC085345 mRNA. Translation: AAH85345.1.
PIRiS26299.
RefSeqiNP_112303.1. NM_031041.1.
UniGeneiRn.6109.

3D structure databases

ProteinModelPortaliP62916.
SMRiP62916.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi249570. 3 interactors.
IntActiP62916. 2 interactors.
STRINGi10116.ENSRNOP00000015033.

PTM databases

PhosphoSitePlusiP62916.

Proteomic databases

PaxDbiP62916.
PRIDEiP62916.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi81673.
KEGGirno:81673.

Organism-specific databases

CTDi2959.
RGDi619735. Gtf2b.

Phylogenomic databases

eggNOGiKOG1597. Eukaryota.
COG1405. LUCA.
HOGENOMiHOG000108634.
HOVERGENiHBG017914.
InParanoidiP62916.
KOiK03124.
PhylomeDBiP62916.
TreeFamiTF105953.

Miscellaneous databases

PROiP62916.

Family and domain databases

Gene3Di1.10.472.10. 2 hits.
InterProiIPR013763. Cyclin-like.
IPR000812. TFIIB.
IPR023486. TFIIB_CS.
IPR013150. TFIIB_cyclin.
IPR013137. Znf_TFIIB.
[Graphical view]
PANTHERiPTHR11618. PTHR11618. 1 hit.
PfamiPF08271. TF_Zn_Ribbon. 1 hit.
PF00382. TFIIB. 2 hits.
[Graphical view]
PRINTSiPR00685. TIFACTORIIB.
SMARTiSM00385. CYCLIN. 2 hits.
[Graphical view]
SUPFAMiSSF47954. SSF47954. 2 hits.
PROSITEiPS00782. TFIIB. 2 hits.
PS51134. ZF_TFIIB. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiTF2B_RAT
AccessioniPrimary (citable) accession number: P62916
Secondary accession number(s): P29053
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 31, 2004
Last sequence update: August 31, 2004
Last modified: November 2, 2016
This is version 98 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.