Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
The new UniProt website is here! Take me to UniProt BETA

UniProtKB - P9WGH9 (SIGH_MYCTU)

Entry version 43 (02 Jun 2021)
Sequence version 1 (16 Apr 2014)
Previous versions | rss
Add a publicationFeedback
Protein

ECF RNA polymerase sigma factor SigH

Gene

sigH

Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
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

Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. Extracytoplasmic function (ECF) sigma factors are held in an inactive form by a cognate anti-sigma factor (RshA) until released. This sigma factor is involved in heat shock and oxidative stress responses; it positively regulates the expression of itself, sigE, sigB and a number of transcriptional regulators as well as other effectors of heat and oxidative stress, leading to direct and indirect control of up to 25% of the bacterial genome. Modulates expression of host genes for intercrine beta (chemokine CC) and apoptosis, altering the host immune response.

4 Publications

Miscellaneous

Was identified as a high-confidence drug target.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section specifies the position and type of each DNA-binding domain present within the protein.<p><a href='/help/dna_bind' target='_top'>More...</a></p>DNA bindingi166 – 185H-T-H motifBy similarityAdd BLAST20

<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, Sigma factor
Biological processStress response, Transcription, Transcription regulation

<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_and_taxonomy_section">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:
ECF RNA polymerase sigma factor SigH
Short name:
ECF sigma factor SigH
Alternative name(s):
Alternative RNA polymerase sigma factor SigH
RNA polymerase sigma-H factor
Short name:
Sigma-H factor
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:sigH
Synonyms:rpoE
Ordered Locus Names:Rv3223c
ORF Names:MTCY07D11.03
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiMycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri83332 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 › Actinobacteria › Corynebacteriales › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex ›
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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
  • UP000001584 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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

Organism-specific databases

Mycobacterium tuberculosis strain H37Rv genome database

More...TubercuListi		Rv3223c

<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

Increased susceptibility to oxidative stress (H2O2, cumene hydroperoxide and diamide, PubMed:12123450) and heat shock (45 and 52 degrees Celsius). Loss of stress-induced expression of a number of genes including clpB, dnaK, sigE and trxB (PubMed:11567012), sigB and itself (PubMed:12123450). No effect on infection of human derived macrophages, and murine J774.1 activated and unactivated macrophages (PubMed:12123450).2 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi26T → A: No in vitro phosphorylation by PknB; when associated with A-106. 1 Publication1
Mutagenesisi106T → A: No in vitro phosphorylation by PknB; when associated with A-26. 1 Publication1

<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_00000940041 – 216ECF RNA polymerase sigma factor SigHAdd BLAST216

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Phosphorylated, possibly on 2 residues, probably by PknB. Phosphorylation of SigH has no effect on interaction with RshA.1 Publication

Keywords - PTMi

Phosphoprotein

Proteomic databases

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

More...PaxDbi		P9WGH9

<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

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Poorly expressed in exponential phase; induced by heat shock (20-fold, 45 degrees Celsius). Induced 10-fold by the thiol-oxidative agent diamide within 30 minutes of exposure, by 2 hours expression is again normal. Autoregulates its own expression, part of the sigH-rshA operon.2 Publications

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts transiently with the RNA polymerase catalytic core formed by RpoA, RpoB, RpoC and RpoZ (2 alpha, 1 beta, 1 beta' and 1 omega subunit) to form the RNA polymerase holoenzyme that can initiate transcription.

Interacts (affinity=15 nM) 1:1 (via sigma-70 factor domain-4) with RshA under reducing conditions; the complex is disrupted as temperatures rise. Phosphorylation of RshA decreases its interaction with SigH, leading to increased SigH-mediated transcription.

4 Publications

Protein-protein interaction databases

Protein interaction database and analysis system

More...IntActi		P9WGH9, 2 interactors

STRING: functional protein association networks

More...STRINGi		83332.Rv3223c

<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

1216
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		P9WGH9

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

<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>Regioni1 – 24DisorderedSequence analysisAdd BLAST24
Regioni37 – 99Sigma-70 factor domain-2Add BLAST63
Regioni140 – 191Sigma-70 factor domain-4Add BLAST52

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi56 – 59Polymerase core bindingSequence analysis4

<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 sigma-70 factor domain-2 mediates sequence-specific interaction with the -10 element in promoter DNA, and plays an important role in melting the double-stranded DNA and the formation of the transcription bubble. The sigma-70 factor domain-2 mediates interaction with the RNA polymerase subunits RpoB and RpoC (By similarity).By similarity
The sigma-70 factor domain-4 contains a helix-turn-helix (H-T-H) motif that mediates interaction with the -35 element in promoter DNA. The domain also mediates interaction with the RNA polymerase subunit RpoA. Interactions between sigma-70 factor domain-4 and anti-sigma factors prevents interaction of sigma factors with the RNA polymerase catalytic core.

<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 sigma-70 factor family. ECF subfamily.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG1595, Bacteria

Identification of Orthologs from Complete Genome Data

More...OMAi		TYINLYR

Database for complete collections of gene phylogenies

More...PhylomeDBi		P9WGH9

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.10.10.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR039425, RNA_pol_sigma-70-like
IPR014284, RNA_pol_sigma-70_dom
IPR014293, RNA_pol_sigma70_actinobac
IPR000838, RNA_pol_sigma70_ECF_CS
IPR007627, RNA_pol_sigma70_r2
IPR013249, RNA_pol_sigma70_r4_t2
IPR013325, RNA_pol_sigma_r2
IPR013324, RNA_pol_sigma_r3/r4-like
IPR036388, WH-like_DNA-bd_sf

The PANTHER Classification System

More...PANTHERi		PTHR43133, PTHR43133, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF04542, Sigma70_r2, 1 hit
PF08281, Sigma70_r4_2, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF88659, SSF88659, 1 hit
SSF88946, SSF88946, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR02947, SigH_actino, 1 hit
TIGR02937, sigma70-ECF, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS01063, SIGMA70_ECF, 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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

P9WGH9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MADIDGVTGS AGLQPGPSEE TDEELTARFE RDAIPLLDQL YGGALRMTRN 
        60         70         80         90        100
PADAEDLLQE TMVKAYAGFR SFRHGTNLKA WLYRILTNTY INSYRKKQRQ 
       110        120        130        140        150
PAEYPTEQIT DWQLASNAEH SSTGLRSAEV EALEALPDTE IKEALQALPE 
       160        170        180        190        200
EFRMAVYYAD VEGFPYKEIA EIMDTPIGTV MSRLHRGRRQ LRGLLADVAR 
       210 
DRGFARGEQA HEGVSS
Length:216
Mass (Da):24,225
Last modified:April 16, 2014 - 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:iAC0C33B47DB40CFD
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
AL123456 Genomic DNA Translation: CCP46040.1

Protein sequence database of the Protein Information Resource

More...PIRi		H70596

NCBI Reference Sequences

More...RefSeqi		NP_217739.1, NC_000962.3
WP_003416897.1, NZ_NVQJ01000003.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		888094

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		mtu:Rv3223c

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|83332.111.peg.3600

<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
AL123456 Genomic DNA Translation: CCP46040.1
PIRiH70596
RefSeqiNP_217739.1, NC_000962.3
WP_003416897.1, NZ_NVQJ01000003.1

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
5ZX2X-ray2.80F1-216[»]
5ZX3X-ray2.75F1-216[»]
6JCXX-ray2.90F1-216[»]
6JCYX-ray3.11F1-95[»]
F146-216[»]
6KONX-ray3.00F1-216[»]
6KOOX-ray2.80F1-216[»]
6KOPX-ray3.30F1-216[»]
6KOQX-ray3.35F1-216[»]
SMRiP9WGH9
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

IntActiP9WGH9, 2 interactors
STRINGi83332.Rv3223c

Proteomic databases

PaxDbiP9WGH9

Protocols and materials databases

The DNASU plasmid repository

More...DNASUi		888094

Genome annotation databases

GeneIDi888094
KEGGimtu:Rv3223c
PATRICifig|83332.111.peg.3600

Organism-specific databases

TubercuListiRv3223c

Phylogenomic databases

eggNOGiCOG1595, Bacteria
OMAiTYINLYR
PhylomeDBiP9WGH9

Family and domain databases

Gene3Di1.10.10.10, 1 hit
InterProiView protein in InterPro
IPR039425, RNA_pol_sigma-70-like
IPR014284, RNA_pol_sigma-70_dom
IPR014293, RNA_pol_sigma70_actinobac
IPR000838, RNA_pol_sigma70_ECF_CS
IPR007627, RNA_pol_sigma70_r2
IPR013249, RNA_pol_sigma70_r4_t2
IPR013325, RNA_pol_sigma_r2
IPR013324, RNA_pol_sigma_r3/r4-like
IPR036388, WH-like_DNA-bd_sf
PANTHERiPTHR43133, PTHR43133, 1 hit
PfamiView protein in Pfam
PF04542, Sigma70_r2, 1 hit
PF08281, Sigma70_r4_2, 1 hit
SUPFAMiSSF88659, SSF88659, 1 hit
SSF88946, SSF88946, 1 hit
TIGRFAMsiTIGR02947, SigH_actino, 1 hit
TIGR02937, sigma70-ECF, 1 hit
PROSITEiView protein in PROSITE
PS01063, SIGMA70_ECF, 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 nameiSIGH_MYCTU
<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: P9WGH9
Secondary accession number(s): L0TEP5, O05843, P66807
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 16, 2014
Last sequence update: April 16, 2014
Last modified: June 2, 2021
This is version 43 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
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