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Protein

Transcription initiation factor IIB

Gene

tfb

Organism
Methanococcus maripaludis (strain C7 / ATCC BAA-1331)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

Stabilizes TBP binding to an archaeal box-A promoter. Also responsible for recruiting RNA polymerase II to the pre-initiation complex (DNA-TBP-TFIIB).UniRule annotation

Cofactori

Zn2+UniRule annotationNote: Binds 1 zinc ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi43 – 431ZincUniRule annotation
Metal bindingi46 – 461ZincUniRule annotation
Metal bindingi62 – 621ZincUniRule annotation
Metal bindingi65 – 651ZincUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Zinc fingeri39 – 7032TFIIB-typeUniRule annotationAdd
BLAST

GO - Molecular functioni

  1. sequence-specific DNA binding transcription factor activity Source: UniProtKB-HAMAP
  2. zinc ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. DNA-templated transcription, initiation Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Biological processi

Transcription, Transcription regulation

Keywords - Ligandi

Metal-binding, Zinc

Enzyme and pathway databases

BioCyciMMAR426368:GHHL-1067-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Transcription initiation factor IIBUniRule annotation
Short name:
TFIIBUniRule annotation
Gene namesi
Name:tfbUniRule annotation
Ordered Locus Names:MmarC7_1038
OrganismiMethanococcus maripaludis (strain C7 / ATCC BAA-1331)
Taxonomic identifieri426368 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaMethanococciMethanococcalesMethanococcaceaeMethanococcus
ProteomesiUP000002298: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 339339Transcription initiation factor IIBPRO_1000080109Add
BLAST

Interactioni

Protein-protein interaction databases

STRINGi426368.MmarC7_1038.

Structurei

3D structure databases

ProteinModelPortaliA6VI28.
SMRiA6VI28. Positions 143-339.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Repeati156 – 239841Add
BLAST
Repeati250 – 331822Add
BLAST

Sequence similaritiesi

Belongs to the TFIIB family.UniRule annotation
Contains 1 TFIIB-type zinc finger.UniRule annotation

Zinc finger

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Zinc fingeri39 – 7032TFIIB-typeUniRule annotationAdd
BLAST

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

eggNOGiCOG1405.
HOGENOMiHOG000108633.
KOiK03124.
OMAiWRAFDHD.

Family and domain databases

Gene3Di1.10.472.10. 2 hits.
HAMAPiMF_00383. TF2B_arch.
InterProiIPR013763. Cyclin-like.
IPR000812. TFIIB.
IPR023484. TFIIB_arc.
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.

A6VI28-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKVESVTKEE TKKPERKIKL AIAKPEDYSN KNVILEKEEE LICPVCGSKN
60 70 80 90 100
IIKDYERAEI VCEMCGCVLQ QNLFDVGPEW RAFDHEQRVK RSRVGAPMTY
110 120 130 140 150
TIHDKGLSTV IDWRNKDSYG KDISADKRAQ LYRLRKWQRR IRVSDASERN
160 170 180 190 200
LAFALSELDR IASKLGLPRN VRENAAVLYR GAVEKGLIRG RSIEGVAAAA
210 220 230 240 250
LYAACRRCKV PRTLDEIAEV SRVDRKEIGR TYRFISRELN IRLAPTNPVD
260 270 280 290 300
YVPRFASELK LPGEVESKAI SILQKAGEKG LTSGRGPTGV AAAAIYIASV
310 320 330
LQGTRRTQRE VADVAGVTEV TIRNRYKELT EHLDIDVTL
Length:339
Mass (Da):38,229
Last modified:August 21, 2007 - v1
Checksum:i5B91E6587E8967D4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000745 Genomic DNA. Translation: ABR66104.1.
RefSeqiWP_011977417.1. NC_009637.1.
YP_001330255.1. NC_009637.1.

Genome annotation databases

EnsemblBacteriaiABR66104; ABR66104; MmarC7_1038.
GeneIDi5328939.
KEGGimmz:MmarC7_1038.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000745 Genomic DNA. Translation: ABR66104.1.
RefSeqiWP_011977417.1. NC_009637.1.
YP_001330255.1. NC_009637.1.

3D structure databases

ProteinModelPortaliA6VI28.
SMRiA6VI28. Positions 143-339.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi426368.MmarC7_1038.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABR66104; ABR66104; MmarC7_1038.
GeneIDi5328939.
KEGGimmz:MmarC7_1038.

Phylogenomic databases

eggNOGiCOG1405.
HOGENOMiHOG000108633.
KOiK03124.
OMAiWRAFDHD.

Enzyme and pathway databases

BioCyciMMAR426368:GHHL-1067-MONOMER.

Family and domain databases

Gene3Di1.10.472.10. 2 hits.
HAMAPiMF_00383. TF2B_arch.
InterProiIPR013763. Cyclin-like.
IPR000812. TFIIB.
IPR023484. TFIIB_arc.
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...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: C7 / ATCC BAA-1331.

Entry informationi

Entry nameiTF2B_METM7
AccessioniPrimary (citable) accession number: A6VI28
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 20, 2008
Last sequence update: August 21, 2007
Last modified: March 4, 2015
This is version 55 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.