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UniProtKB - P76256 (TSAB_ECOLI)

Entry version 161 (23 Feb 2022)
Sequence version 1 (01 Feb 1997)
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Protein

tRNA threonylcarbamoyladenosine biosynthesis protein TsaB

Gene

tsaB

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score:

Annotation score:5 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>-Experimental evidence at protein leveli <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

Required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t6A37) in tRNAs that read codons beginning with adenine. Is probably involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37, together with TsaD and TsaE. TsaB seems to play an indirect role in the t6A biosynthesis pathway, possibly in regulating the core enzymatic function of TsaD. In fact, can act as a protease that specifically degrades TsaD in vitro; therefore TsaB may post-translationally regulate cellular pools of TsaD via proteolytic degradation. Does not show sialoglycoprotease activity against glycophorin A.

2 Publications

Miscellaneous

TsaBCDE are necessary and sufficient for tRNA(NNU) t6A37 threonylcarbamoyladenosine modification in vitro in E.coli.1 Publication

Caution

The well-known t6A modification appears to be a hydrolyzed artifact of natural cyclic t6A (ct6A) that occurs during the preparation and handling of tRNA in E.coli and many other species (PubMed:23242255). In these species, the t6A modification is processed further by dehydration into ct6A, a reaction catalyzed by TcdA.Curated

<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

Biological processtRNA processing

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:G6991-MONOMER

<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:
tRNA threonylcarbamoyladenosine biosynthesis protein TsaB
Alternative name(s):
t(6)A37 threonylcarbamoyladenosine biosynthesis protein TsaB
<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:tsaB
Synonyms:yeaZ
Ordered Locus Names:b1807, JW1796
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia ›
<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
  • UP000000318 <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: Chromosome
  • UP000000625 Componenti: Chromosome

<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

Cytoplasm

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Appears essential for growth, since no null mutants can be obtained. Conditional depletion of this gene leads to enlarged cells, which display highly condensed nucleoids. The TsaB depletion phenotype is suppressed by overexpressing the response regulator RstA.1 Publication

<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_00000969901 – 231tRNA threonylcarbamoyladenosine biosynthesis protein TsaBAdd BLAST231

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P76256

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

More...PaxDbi		P76256

PRoteomics IDEntifications database

More...PRIDEi		P76256

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

Interacts with TsaD and TsaE in a mutually exclusive manner; TsaD is the preferred partner.

Also interacts with TsaC.

3 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4260340, 15 interactors
850661, 5 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...ComplexPortali		CPX-1094, YgjD-YeaZ-YjeE complex

Database of interacting proteins

More...DIPi		DIP-11804N

Protein interaction database and analysis system

More...IntActi		P76256, 12 interactors

STRING: functional protein association networks

More...STRINGi		511145.b1807

<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

Secondary structure

1231
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		P76256

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		P76256

<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

<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 KAE1 / TsaD family. TsaB subfamily.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG1214, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_064886_2_0_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P76256

Database for complete collections of gene phylogenies

More...PhylomeDBi		P76256

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR043129, ATPase_NBD
IPR000905, Gcp-like_dom
IPR022496, T6A_TsaB

The PANTHER Classification System

More...PANTHERi		PTHR11735, PTHR11735, 1 hit
PTHR11735:SF11, PTHR11735:SF11, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00814, TsaD, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF53067, SSF53067, 2 hits

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR03725, T6A_YeaZ, 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>Sequencei

<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.

P76256-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRILAIDTAT EACSVALWND GTVNAHFELC PREHTQRILP MVQDILTTSG 
        60         70         80         90        100
TSLTDINALA YGRGPGSFTG VRIGIGIAQG LALGAELPMI GVSTLMTMAQ 
       110        120        130        140        150
GAWRKNGATR VLAAIDARMG EVYWAEYQRD ENGIWHGEET EAVLKPEIVH 
       160        170        180        190        200
ERMQQLSGEW VTVGTGWQAW PDLGKESGLV LRDGEVLLPA AEDMLPIACQ 
       210        220        230 
MFAEGKTVAV EHAEPVYLRN NVAWKKLPGK E
Length:231
Mass (Da):25,181
Last modified:February 1, 1997 - 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:i5163E6A5342DC276
GO

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
U00096 Genomic DNA Translation: AAC74877.1
AP009048 Genomic DNA Translation: BAA15611.1

Protein sequence database of the Protein Information Resource

More...PIRi		G64941

NCBI Reference Sequences

More...RefSeqi		NP_416321.1, NC_000913.3
WP_001220966.1, NZ_SSZK01000001.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC74877; AAC74877; b1807
BAA15611; BAA15611; BAA15611

Database of genes from NCBI RefSeq genomes

More...GeneIDi		946304

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW1796
eco:b1807

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.446

<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
U00096 Genomic DNA Translation: AAC74877.1
AP009048 Genomic DNA Translation: BAA15611.1
PIRiG64941
RefSeqiNP_416321.1, NC_000913.3
WP_001220966.1, NZ_SSZK01000001.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1OKJX-ray2.28A/B/C/D2-231[»]
4WQ4X-ray2.33C/D1-231[»]
4WQ5X-ray2.33C/D1-231[»]
4YDUX-ray2.33C/D1-231[»]
6Z81X-ray2.31C/D1-231[»]
SMRiP76256
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi4260340, 15 interactors
850661, 5 interactors
ComplexPortaliCPX-1094, YgjD-YeaZ-YjeE complex
DIPiDIP-11804N
IntActiP76256, 12 interactors
STRINGi511145.b1807

Proteomic databases

jPOSTiP76256
PaxDbiP76256
PRIDEiP76256

Genome annotation databases

EnsemblBacteriaiAAC74877; AAC74877; b1807
BAA15611; BAA15611; BAA15611
GeneIDi946304
KEGGiecj:JW1796
eco:b1807
PATRICifig|1411691.4.peg.446

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...EchoBASEi		EB3285

Phylogenomic databases

eggNOGiCOG1214, Bacteria
HOGENOMiCLU_064886_2_0_6
InParanoidiP76256
PhylomeDBiP76256

Enzyme and pathway databases

BioCyciEcoCyc:G6991-MONOMER

Miscellaneous databases

EvolutionaryTraceiP76256

Protein Ontology

More...PROi		PR:P76256

Family and domain databases

InterProiView protein in InterPro
IPR043129, ATPase_NBD
IPR000905, Gcp-like_dom
IPR022496, T6A_TsaB
PANTHERiPTHR11735, PTHR11735, 1 hit
PTHR11735:SF11, PTHR11735:SF11, 1 hit
PfamiView protein in Pfam
PF00814, TsaD, 1 hit
SUPFAMiSSF53067, SSF53067, 2 hits
TIGRFAMsiTIGR03725, T6A_YeaZ, 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 nameiTSAB_ECOLI
<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: P76256
Secondary accession number(s): O08476, O08477
<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: November 1, 1997
Last sequence update: February 1, 1997
Last modified: February 23, 2022
This is version 161 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 programProkaryotic 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

3D-structure, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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