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UniProtKB - P0A780 (NUSB_ECOLI)

Entry version 127 (07 Apr 2021)
Sequence version 1 (07 Jun 2005)
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Protein

Transcription antitermination protein NusB

Gene

nusB

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

Annotation score:4 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

Part of the processive rRNA transcription and antitermination complex (rrnTAC). The complex forms an RNA-chaperone ring around the RNA exit tunnel of RNA polymerase (RNAP). It supports rapid transcription and antitermination of rRNA operons, cotranscriptional rRNA folding, and annealing of distal rRNA regions to allow correct ribosome biogenesis (PubMed:32871103). Involved in transcription antitermination. Required for transcription of ribosomal RNA (rRNA) genes. Binds specifically to the boxA antiterminator sequence of the ribosomal RNA (rrn) operons (PubMed:7045592, PubMed:7678781, PubMed:11884128, PubMed:14973028, PubMed:15716433, PubMed:16109710). The affinity of NusB for the boxA RNA sequence is significantly increased in the presence of the ribosomal protein S10 (PubMed:16109710, PubMed:11884128). NusB may serve as a loading factor that ensures efficient entry of S10 into the transcription complexes (PubMed:19111659). It also modulates the rrn boxA-mediated transcription elongation rates (PubMed:10383769).9 Publications

<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 functionRNA-binding
Biological processRibosome biogenesis, Transcription, Transcription antitermination, Transcription regulation

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:EG10666-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:
Transcription antitermination protein NusBUniRule annotationCurated
Alternative name(s):
Antitermination factor NusB1 PublicationUniRule annotation
N utilization substance protein BCurated
<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:nusB1 PublicationUniRule annotation
Synonyms:groNB1 Publication, ssyB1 Publication
Ordered Locus Names:b0416, JW0406
<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

<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

Inactivation of the gene causes cold-sensitive cell growth.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_00001765361 – 139Transcription antitermination protein NusBAdd BLAST139

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P0A780

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

More...PaxDbi		P0A780

PRoteomics IDEntifications database

More...PRIDEi		P0A780

<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

Monomer in solution (PubMed:10881193, PubMed:16109710).

Forms a heterodimer with the ribosomal protein S10 (PubMed:1731086, PubMed:11884128, PubMed:16109710, PubMed:19111659). The rRNA transcription and antitermination complex (rrnTAC) consists of RNAP, NusA, NusB, NusE (rpsJ), NusG, SubB, ribosomal protein S4, DNA and precursor rRNA; S4 is more flexible than other subunits (PubMed:32871103).

6 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

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4259834, 56 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...ComplexPortali		CPX-5674, Transcription elongation complex
CPX-5780, lambdaN-dependent processive transcription antitermination complex

Database of interacting proteins

More...DIPi		DIP-48254N

Protein interaction database and analysis system

More...IntActi		P0A780, 12 interactors

STRING: functional protein association networks

More...STRINGi		511145.b0416

<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

1139
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		P0A780

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		P0A780

<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 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

The N-terminal region functions as an arginine-rich RNA-binding motif (ARM).1 Publication

<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 NusB family.UniRule annotationCurated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG0781, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_087843_4_1_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P0A780

Database for complete collections of gene phylogenies

More...PhylomeDBi		P0A780

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.10.940.10, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_00073, NusB, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR035926, NusB-like_sf
IPR011605, NusB_fam
IPR006027, NusB_RsmB_TIM44

The PANTHER Classification System

More...PANTHERi		PTHR11078, PTHR11078, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF01029, NusB, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF48013, SSF48013, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01951, nusB, 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.

P0A780-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKPAARRRAR ECAVQALYSW QLSQNDIADV EYQFLAEQDV KDVDVLYFRE 
        60         70         80         90        100
LLAGVATNTA YLDGLMKPYL SRLLEELGQV EKAVLRIALY ELSKRSDVPY 
       110        120        130 
KVAINEAIEL AKSFGAEDSH KFVNGVLDKA APVIRPNKK
Length:139
Mass (Da):15,689
Last modified:June 7, 2005 - 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:i0BB912103061243B
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti59T → S (PubMed:6330693).Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural varianti18Y → D in nusB5; abolishes antitermination. 1

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
X00681 Genomic DNA Translation: CAA25289.1
X64395 Genomic DNA Translation: CAA45737.1
M26839 Genomic DNA Translation: AAA24228.1
U82664 Genomic DNA Translation: AAB40172.1
U00096 Genomic DNA Translation: AAC73519.1
AP009048 Genomic DNA Translation: BAE76196.1

Protein sequence database of the Protein Information Resource

More...PIRi		I51822, FJECB

NCBI Reference Sequences

More...RefSeqi		NP_414950.1, NC_000913.3
WP_000801125.1, NZ_STEB01000007.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC73519; AAC73519; b0416
BAE76196; BAE76196; BAE76196

Database of genes from NCBI RefSeq genomes

More...GeneIDi		58460341
945054

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW0406
eco:b0416

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.1861

<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
X00681 Genomic DNA Translation: CAA25289.1
X64395 Genomic DNA Translation: CAA45737.1
M26839 Genomic DNA Translation: AAA24228.1
U82664 Genomic DNA Translation: AAB40172.1
U00096 Genomic DNA Translation: AAC73519.1
AP009048 Genomic DNA Translation: BAE76196.1
PIRiI51822, FJECB
RefSeqiNP_414950.1, NC_000913.3
WP_000801125.1, NZ_STEB01000007.1

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
1EY1NMR-A1-139[»]
3D3BX-ray1.30A1-139[»]
3D3CX-ray2.60A/B/C1-139[»]
3IMQX-ray2.50A/B/C3-139[»]
5MS0electron microscopy9.80L1-139[»]
6TQNelectron microscopy3.80B1-139[»]
6TQOelectron microscopy4.00B1-139[»]
SMRiP0A780
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi4259834, 56 interactors
ComplexPortaliCPX-5674, Transcription elongation complex
CPX-5780, lambdaN-dependent processive transcription antitermination complex
DIPiDIP-48254N
IntActiP0A780, 12 interactors
STRINGi511145.b0416

Proteomic databases

jPOSTiP0A780
PaxDbiP0A780
PRIDEiP0A780

Genome annotation databases

EnsemblBacteriaiAAC73519; AAC73519; b0416
BAE76196; BAE76196; BAE76196
GeneIDi58460341
945054
KEGGiecj:JW0406
eco:b0416
PATRICifig|1411691.4.peg.1861

Organism-specific databases

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

More...EchoBASEi		EB0660

Phylogenomic databases

eggNOGiCOG0781, Bacteria
HOGENOMiCLU_087843_4_1_6
InParanoidiP0A780
PhylomeDBiP0A780

Enzyme and pathway databases

BioCyciEcoCyc:EG10666-MONOMER

Miscellaneous databases

EvolutionaryTraceiP0A780

Protein Ontology

More...PROi		PR:P0A780

Family and domain databases

Gene3Di1.10.940.10, 1 hit
HAMAPiMF_00073, NusB, 1 hit
InterProiView protein in InterPro
IPR035926, NusB-like_sf
IPR011605, NusB_fam
IPR006027, NusB_RsmB_TIM44
PANTHERiPTHR11078, PTHR11078, 1 hit
PfamiView protein in Pfam
PF01029, NusB, 1 hit
SUPFAMiSSF48013, SSF48013, 1 hit
TIGRFAMsiTIGR01951, nusB, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

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 nameiNUSB_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: P0A780
Secondary accession number(s): P04381, Q2MC10
<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: March 20, 1987
Last sequence update: June 7, 2005
Last modified: April 7, 2021
This is version 127 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, Direct protein sequencing, 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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