Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
We will be switching to the new UniProt website soon. Please explore and share your feedback. Take me to the new website.

UniProtKB - F7BLM1 (TAF1B_XENTR)

Entry version 59 (23 Feb 2022)
Sequence version 1 (27 Jul 2011)
Previous versions | rss
Add a publicationFeedback
Protein

TATA box-binding protein-associated factor RNA polymerase I subunit B

Gene

taf1b

Organism
Xenopus tropicalis (Western clawed frog) (Silurana tropicalis)
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Protein inferred from homologyi <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Component of RNA polymerase I core factor complex that acts as a GTF2B/TFIIB-like factor and plays a key role in multiple steps during transcription initiation such as pre-initiation complex (PIC) assembly and postpolymerase recruitment events in polymerase I (Pol I) transcription. Binds rDNA promoters and plays a role in Pol I recruitment (By similarity).

By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi13ZincBy similarity1
Metal bindingi16ZincBy similarity1
Metal bindingi31ZincBy similarity1
Metal bindingi34ZincBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section specifies the position(s) and type(s) of zinc fingers within the protein.<p><a href='/help/zn_fing' target='_top'>More...</a></p>Zinc fingeri4 – 39RRN7-typeAdd BLAST36

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionDNA-binding
Biological processTranscription, Transcription regulation
LigandMetal-binding, Zinc

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-XTR-5250924, B-WICH complex positively regulates rRNA expression
R-XTR-73762, RNA Polymerase I Transcription Initiation

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
TATA box-binding protein-associated factor RNA polymerase I subunit B
Alternative name(s):
RNA polymerase I-specific TBP-associated factor 63 kDa
Short name:
TAFI63
TATA box-binding protein-associated factor 1B
Short name:
TBP-associated factor 1B
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:taf1b
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiXenopus tropicalis (Western clawed frog) (Silurana tropicalis)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri8364 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Amphibia › Batrachia › Anura › Pipoidea › Pipidae › Xenopodinae › Xenopus › Silurana
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000008143 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unassembled WGS sequence

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...Xenbasei		XB-GENE-992275, taf1b

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Nucleus

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004168731 – 596TATA box-binding protein-associated factor RNA polymerase I subunit BAdd BLAST596

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		F7BLM1

PRoteomics IDEntifications database

More...PRIDEi		F7BLM1

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSXETG00000007011, Expressed in embryo and 12 other tissues

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		8364.ENSXETP00000015280

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni40 – 69B-readerBy similarityAdd BLAST30
Regioni70 – 74B-linkerBy similarity5
Regioni75 – 263N-terminal cyclin foldBy similarityAdd BLAST189
Regioni264 – 374C-terminal cyclin foldBy similarityAdd BLAST111
Regioni575 – 596DisorderedSequence analysisAdd BLAST22

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi582 – 596Basic and acidic residuesSequence analysisAdd BLAST15

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

Although it shares weak sequence similarity with GTF2B/TFIIB, displays a similar subdomain organization as GTF2B/TFIIB, with a N-terminal zinc finger, a connecting region (composed of B-reader and B-linker regions), followed by 2 cyclin folds. The RRN7-type zinc finger plays an essential postrecruitment role in Pol I transcription at a step preceding synthesis of the first 40 nucleotides (By similarity).By similarity

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the RRN7/TAF1B family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri4 – 39RRN7-typeAdd BLAST36

Keywords - Domaini

Zinc-finger

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		ENOG502QVGU, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00440000033827

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_032815_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		F7BLM1

Identification of Orthologs from Complete Genome Data

More...OMAi		PRSFVWL

Database of Orthologous Groups

More...OrthoDBi		329399at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		F7BLM1

TreeFam database of animal gene trees

More...TreeFami		TF324353

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR033599, TAF1B/Rrn7
IPR021752, TF_Rrn7_Zf

The PANTHER Classification System

More...PANTHERi		PTHR31576, PTHR31576, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF11781, zf-RRN7, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequence (1+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

This entry has 1 described isoform and 3 potential isoforms that are computationally mapped.Show allAlign All

F7BLM1-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MEEEDARGYN KPCPQCSEVN WAISDEGTFY CKSCHTVIEK TREVDDTEVF 
        60         70         80         90        100
STHGKLQSIS RGLRKKRKLE KGWEWYVCEG FQFILIKQAE ALQALGVAPQ 
       110        120        130        140        150
IKDEILCTFW RRYLQKTNQA YVKRPVYRSV LTCRDSDSSA TEVDSDLEAF 
       160        170        180        190        200
SIGTSSVSDG YTSDASGRLS LPTEDIPSAS ESAVSVHSGS VDGLSHVKMR 
       210        220        230        240        250
KNFKPWNYVK MTMPMTLAFC YLALLWLRAS ITLSDLLRFV FEKHIPYINA 
       260        270        280        290        300
HQYLPEEIKV YGHDVRIFRM QALPVYNDIL SKAYELGAFL DLPQFPPITK 
       310        320        330        340        350
NCYLHPSVLC MKYLIEANLP DELQQWTCQV AEKTGIDDFH RLTFDPACKR 
       360        370        380        390        400
ASHIRYDVQA VALIILVLKL LFALDDNTEW QLSKFAERMN QSNKEKTVFD 
       410        420        430        440        450
LQSWYQTVRQ CYEKAQQKLE EEYGRFMWKS DCPLYYSQTT KSLLQKRKQM 
       460        470        480        490        500
SENLQRQFSK LAGAAPNTGK QGPSSFLFKW EEQNTDTISF HGHSLQAVLH 
       510        520        530        540        550
QGKKPPTPIN THYWLNSLRK CKTRICQHSE LYEESNFPRS YHFMVCLFAF 
       560        570        580        590 
LLRVEHCVIH HEVGLIEELF FQEKKNKRKQ KPKKQEMTDF REVPPD
Length:596
Mass (Da):69,304
Last modified:July 27, 2011 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i77C5F71B5E753275
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 3 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A6I8S7X3A0A6I8S7X3_XENTR
TATA box-binding protein-associated...
taf1b
590Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
A0A5S6KZZ6A0A5S6KZZ6_XENTR
TATA box-binding protein-associated...
taf1b
402Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
A0A6I8Q7B2A0A6I8Q7B2_XENTR
TATA box-binding protein-associated...
taf1b
550Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AAMC01085723 Genomic DNA No translation available.
AAMC01085724 Genomic DNA No translation available.
AAMC01085725 Genomic DNA No translation available.
AAMC01085726 Genomic DNA No translation available.
AAMC01085727 Genomic DNA No translation available.
AAMC01085728 Genomic DNA No translation available.

NCBI Reference Sequences

More...RefSeqi		XP_002938934.1, XM_002938888.4

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENSXETT00000015280; ENSXETP00000015280; ENSXETG00000007011

Database of genes from NCBI RefSeq genomes

More...GeneIDi		100379921

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		xtr:100379921

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AAMC01085723 Genomic DNA No translation available.
AAMC01085724 Genomic DNA No translation available.
AAMC01085725 Genomic DNA No translation available.
AAMC01085726 Genomic DNA No translation available.
AAMC01085727 Genomic DNA No translation available.
AAMC01085728 Genomic DNA No translation available.
RefSeqiXP_002938934.1, XM_002938888.4

3D structure databases

Database of comparative protein structure models

More...ModBasei		Search...

SWISS-MODEL Interactive Workspace

More...SWISS-MODEL-Workspacei		Submit a new modelling project...

Protein-protein interaction databases

STRINGi8364.ENSXETP00000015280

Proteomic databases

PaxDbiF7BLM1
PRIDEiF7BLM1

Genome annotation databases

EnsembliENSXETT00000015280; ENSXETP00000015280; ENSXETG00000007011
GeneIDi100379921
KEGGixtr:100379921

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		9014
XenbaseiXB-GENE-992275, taf1b

Phylogenomic databases

eggNOGiENOG502QVGU, Eukaryota
GeneTreeiENSGT00440000033827
HOGENOMiCLU_032815_0_0_1
InParanoidiF7BLM1
OMAiPRSFVWL
OrthoDBi329399at2759
PhylomeDBiF7BLM1
TreeFamiTF324353

Enzyme and pathway databases

ReactomeiR-XTR-5250924, B-WICH complex positively regulates rRNA expression
R-XTR-73762, RNA Polymerase I Transcription Initiation

Gene expression databases

BgeeiENSXETG00000007011, Expressed in embryo and 12 other tissues

Family and domain databases

InterProiView protein in InterPro
IPR033599, TAF1B/Rrn7
IPR021752, TF_Rrn7_Zf
PANTHERiPTHR31576, PTHR31576, 1 hit
PfamiView protein in Pfam
PF11781, zf-RRN7, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiTAF1B_XENTR
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: F7BLM1
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 18, 2012
Last sequence update: July 27, 2011
Last modified: February 23, 2022
This is version 59 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again