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Entry version 145 (08 May 2019)
Sequence version 1 (01 Aug 1988)
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Protein

RNA polymerase sigma-F factor

Gene

sigF

Organism
Bacillus subtilis (strain 168)
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. This sigma factor is responsible for the expression of sporulation specific genes (PubMed:8759874). Interaction with SpoIIAB inhibits sigma-F activity throughout the cell before the formation of the asymmetric septum; after septation the interaction is confined to the mother cell, and sigma F activity is released in the prespore. Responsible for expression of csfB (the anti-sigma-G factor Gin) (PubMed:8759874).1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Interaction with SpoIIAB inhibits sigma-F activity throughout the cell before the formation of the asymmetric septum; after septation the interaction is confined to the mother cell, and sigma-F activity is released in the prespore (PubMed:8358793). Fin, a second, forespore-specific anti-sigma factor is induced in 2 successive waves by sigma-F and sigma-G, by antagonizing sigma-F it allows the switch to sigma-G factor and progression to the late sporulation development stages (PubMed:21037003).2 Publications

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 bindingi221 – 240H-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

GO - Biological processi

<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 processSporulation, Transcription, Transcription regulation

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
BSUB:BSU23450-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_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:
RNA polymerase sigma-F factor
Alternative name(s):
Sporulation sigma factor
Stage II sporulation protein AC
<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:sigF
Synonyms:spoIIAC
Ordered Locus Names:BSU23450
<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>OrganismiBacillus subtilis (strain 168)
<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 identifieri224308 [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 lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillus
<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
  • UP000001570 <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

<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

In spo-63 (loss of residues 27-255); no spores develop, no induction of sporulation-associated enzymes.1 Publication

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>Mutagenesisi73S → F in spo-563; 10(6)-fold decrease in spore production, 50% induction of sporulation-associated enzymes. 1 Publication1
Mutagenesisi99 – 255Missing in spo-578; no spores develop, no induction of sporulation-associated enzymes. 1 PublicationAdd BLAST157
Mutagenesisi111R → Q in spo-564; 1000-fold decrease in spore production, 50% induction of sporulation-associated enzymes. 1 Publication1
Mutagenesisi233V → M in spo-561; 10(6)-fold decrease in spore production, 50% induction of sporulation-associated enzymes. 1 Publication1
Mutagenesisi237R → K in spo-560; 1000-fold decrease in spore production, 50% induction of sporulation-associated enzymes. 1 Publication1
Mutagenesisi245 – 255Missing in spo-1; no spores develop, no induction of sporulation-associated enzymes. 1 PublicationAdd BLAST11

<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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000939431 – 255RNA polymerase sigma-F factorAdd BLAST255

Proteomic databases

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

More...
PaxDbi
P07860

PRoteomics IDEntifications database

More...
PRIDEi
P07860

<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 provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Produced in the predivisional sporangium, but does not become active in directing gene expression until after septum formation when its activity is restricted to the forespore (at protein level).1 Publication

<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
224308.BSU23450

<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

3D structure databases

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

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SMRi
P07860

Database of comparative protein structure models

More...
ModBasei
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

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>Motifi61 – 74Polymerase core bindingAdd BLAST14

<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.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105CT2 Bacteria
COG1191 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000270270

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P07860

KEGG Orthology (KO)

More...
KOi
K03091

Identification of Orthologs from Complete Genome Data

More...
OMAi
RDDGMIK

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P07860

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.10.10, 2 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR014284 RNA_pol_sigma-70_dom
IPR014322 RNA_pol_sigma-B/F/G
IPR014236 RNA_pol_sigma-F
IPR000943 RNA_pol_sigma70
IPR007627 RNA_pol_sigma70_r2
IPR007624 RNA_pol_sigma70_r3
IPR007630 RNA_pol_sigma70_r4
IPR013325 RNA_pol_sigma_r2
IPR013324 RNA_pol_sigma_r3/r4-like
IPR036388 WH-like_DNA-bd_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF04542 Sigma70_r2, 1 hit
PF04539 Sigma70_r3, 1 hit
PF04545 Sigma70_r4, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF000770 RNA_pol_sigma-SigE/K, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00046 SIGMA70FCT

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF88659 SSF88659, 2 hits
SSF88946 SSF88946, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR02980 SigBFG, 1 hit
TIGR02937 sigma70-ECF, 1 hit
TIGR02885 spore_sigF, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00715 SIGMA70_1, 1 hit
PS00716 SIGMA70_2, 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.

P07860-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MDVEVKKNGK NAQLKDHEVK ELIKQSQNGD QQARDLLIEK NMRLVWSVVQ
60 70 80 90 100
RFLNRGYEPD DLFQIGCIGL LKSVDKFDLT YDVRFSTYAV PMIIGEIQRF
110 120 130 140 150
IRDDGTVKVS RSLKELGNKI RRAKDELSKT LGRVPTVQEI ADHLEIEAED
160 170 180 190 200
VVLAQEAVRA PSSIHETVYE NDGDPITLLD QIADNSEEKW FDKIALKEAI
210 220 230 240 250
SDLEEREKLI VYLRYYKDQT QSEVAERLGI SQVQVSRLEK KILKQIKVQM

DHTDG
Length:255
Mass (Da):29,372
Last modified:August 1, 1988 - 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:i68970E159A1FE7D0
GO

<p>This subsection of the ‘Sequence’ section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAA22791 differs from that shown. Reason: Frameshift at position 180.Curated

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
M15744 Genomic DNA Translation: AAA22788.1
M17643 Genomic DNA Translation: AAA22791.1 Frameshift.
D84432 Genomic DNA Translation: BAA12655.1
AL009126 Genomic DNA Translation: CAB14277.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A28567

NCBI Reference Sequences

More...
RefSeqi
NP_390226.1, NC_000964.3
WP_003230458.1, NZ_JNCM01000036.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
CAB14277; CAB14277; BSU23450

Database of genes from NCBI RefSeq genomes

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GeneIDi
938729

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bsu:BSU23450

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|224308.179.peg.2555

<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
M15744 Genomic DNA Translation: AAA22788.1
M17643 Genomic DNA Translation: AAA22791.1 Frameshift.
D84432 Genomic DNA Translation: BAA12655.1
AL009126 Genomic DNA Translation: CAB14277.1
PIRiA28567
RefSeqiNP_390226.1, NC_000964.3
WP_003230458.1, NZ_JNCM01000036.1

3D structure databases

SMRiP07860
ModBaseiSearch...

Protein-protein interaction databases

STRINGi224308.BSU23450

Proteomic databases

PaxDbiP07860
PRIDEiP07860

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCAB14277; CAB14277; BSU23450
GeneIDi938729
KEGGibsu:BSU23450
PATRICifig|224308.179.peg.2555

Phylogenomic databases

eggNOGiENOG4105CT2 Bacteria
COG1191 LUCA
HOGENOMiHOG000270270
InParanoidiP07860
KOiK03091
OMAiRDDGMIK
PhylomeDBiP07860

Enzyme and pathway databases

BioCyciBSUB:BSU23450-MONOMER

Family and domain databases

Gene3Di1.10.10.10, 2 hits
InterProiView protein in InterPro
IPR014284 RNA_pol_sigma-70_dom
IPR014322 RNA_pol_sigma-B/F/G
IPR014236 RNA_pol_sigma-F
IPR000943 RNA_pol_sigma70
IPR007627 RNA_pol_sigma70_r2
IPR007624 RNA_pol_sigma70_r3
IPR007630 RNA_pol_sigma70_r4
IPR013325 RNA_pol_sigma_r2
IPR013324 RNA_pol_sigma_r3/r4-like
IPR036388 WH-like_DNA-bd_sf
PfamiView protein in Pfam
PF04542 Sigma70_r2, 1 hit
PF04539 Sigma70_r3, 1 hit
PF04545 Sigma70_r4, 1 hit
PIRSFiPIRSF000770 RNA_pol_sigma-SigE/K, 1 hit
PRINTSiPR00046 SIGMA70FCT
SUPFAMiSSF88659 SSF88659, 2 hits
SSF88946 SSF88946, 1 hit
TIGRFAMsiTIGR02980 SigBFG, 1 hit
TIGR02937 sigma70-ECF, 1 hit
TIGR02885 spore_sigF, 1 hit
PROSITEiView protein in PROSITE
PS00715 SIGMA70_1, 1 hit
PS00716 SIGMA70_2, 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 nameiRPSF_BACSU
<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: P07860
<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: August 1, 1988
Last sequence update: August 1, 1988
Last modified: May 8, 2019
This is version 145 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

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Bacillus subtilis
    Bacillus subtilis (strain 168): entries, gene names and cross-references to SubtiList
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