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UniProtKB - P0ACT4 (TETR4_ECOLX)

Entry version 95 (07 Apr 2021)
Sequence version 2 (23 Jan 2007)
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Protein

Tetracycline repressor protein class D

Gene

tetR

Organism
Escherichia coli
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

TetR is the repressor of the tetracycline resistance element; its N-terminal region forms a helix-turn-helix structure and binds DNA. Binding of tetracycline to TetR reduces the repressor affinity for the tetracycline resistance gene (tetA) promoter operator sites.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei64Involved in binding magnesium-tetracycline complex1
<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 bindingi100Magnesium [Mg-tetracycline]1

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 and type of each DNA-binding domain present within the protein.<p><a href='/help/dna_bind' target='_top'>More...</a></p>DNA bindingi26 – 45H-T-H motifPROSITE-ProRule annotationAdd 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, Repressor
Biological processAntibiotic resistance, Transcription, Transcription regulation
LigandMagnesium, Metal-binding

<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:
Tetracycline repressor protein class D
<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:tetR
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates if the gene coding for the protein originates from the hydrogenosome, the mitochondrion, the nucleomorph, different plastids or a plasmid. The absence of this section means that the gene is located in one of the main chromosomal element(s).<p><a href='/help/encoded_on' target='_top'>More...</a></p>Encoded oniPlasmid RA1
<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
<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 identifieri562 [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 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 <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved
<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_00000706152 – 218Tetracycline repressor protein class DAdd BLAST217

<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

By the [Mg-tetracycline]+ complex.

<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.

<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

1218
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Small Angle Scattering Biological Data Bank

More...SASBDBi		P0ACT4

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

More...SMRi		P0ACT4

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		P0ACT4

<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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini3 – 63HTH tetR-typePROSITE-ProRule annotationAdd BLAST61

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR023772, DNA-bd_HTH_TetR-type_CS
IPR009057, Homeobox-like_sf
IPR001647, HTH_TetR
IPR004111, Repressor_TetR_C
IPR003012, Tet_transcr_reg_TetR
IPR036271, Tet_transcr_reg_TetR-rel_C_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02909, TetR_C_1, 1 hit
PF00440, TetR_N, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00455, HTHTETR
PR00400, TETREPRESSOR

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF46689, SSF46689, 1 hit
SSF48498, SSF48498, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS01081, HTH_TETR_1, 1 hit
PS50977, HTH_TETR_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%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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

P0ACT4-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MARLNRESVI DAALELLNET GIDGLTTRKL AQKLGIEQPT LYWHVKNKRA 
        60         70         80         90        100
LLDALAVEIL ARHHDYSLPA AGESWQSFLR NNAMSFRRAL LRYRDGAKVH 
       110        120        130        140        150
LGTRPDEKQY DTVETQLRFM TENGFSLRDG LYAISAVSHF TLGAVLEQQE 
       160        170        180        190        200
HTAALTDRPA APDENLPPLL REALQIMDSD DGEQAFLHGL ESLIRGFEVQ 
       210 
LTALLQIVGG DKLIIPFC
Length:218
Mass (Da):24,419
Last modified:January 23, 2007 - v2
<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:iB1F0F0EE6B4CF991
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
X01083 Genomic DNA Translation: CAA25561.1

Protein sequence database of the Protein Information Resource

More...PIRi		S07359

NCBI Reference Sequences

More...RefSeqi		WP_000113282.1, NZ_WSXE01000114.1
YP_002995714.1, NC_012886.1
YP_007349483.1, NC_020086.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		57003284
60594526

<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
X01083 Genomic DNA Translation: CAA25561.1
PIRiS07359
RefSeqiWP_000113282.1, NZ_WSXE01000114.1
YP_002995714.1, NC_012886.1
YP_007349483.1, NC_020086.1

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
1A6IX-ray2.40A6-218[»]
1BJZX-ray2.20A3-208[»]
1ORKX-ray2.40A3-208[»]
1QPIX-ray2.50A4-206[»]
2FJ1X-ray2.20A2-208[»]
2NS7X-ray2.40A/B/C/D188-208[»]
2NS8X-ray2.55A/B/C/D188-208[»]
2O7OX-ray1.89A2-208[»]
2TCTX-ray2.10A2-208[»]
2TRTX-ray2.50A2-218[»]
2VKEX-ray1.62A3-208[»]
2VKVX-ray1.74A51-208[»]
2X6OX-ray2.30A3-208[»]
2X9DX-ray2.51A3-208[»]
2XB5X-ray2.50A2-208[»]
2XGCX-ray2.15A/B51-208[»]
2XGDX-ray2.25A51-208[»]
2XGEX-ray2.14A/B51-208[»]
2XPUX-ray1.55A3-208[»]
2XPVX-ray1.49A3-208[»]
2XPWX-ray1.44A3-208[»]
2XRLX-ray1.85A3-208[»]
3FK6X-ray2.10A/B51-208[»]
3FK7X-ray2.06A/B51-208[»]
3ZQFX-ray2.56A188-208[»]
3ZQGX-ray2.45A188-208[»]
3ZQHX-ray1.60A188-208[»]
3ZQIX-ray1.50A/B188-208[»]
4ABZX-ray1.89A3-208[»]
4AUXX-ray2.25A2-208[»]
4B1RX-ray1.95A3-208[»]
4B3AX-ray1.70A3-208[»]
4D7MX-ray1.75A3-208[»]
4D7NX-ray1.89A3-208[»]
4V2FX-ray2.40A3-208[»]
4V2GX-ray2.70A/B3-208[»]
5FKKX-ray1.75A/B3-208[»]
5FKLX-ray1.90A3-208[»]
5FKMX-ray1.63A3-208[»]
5FKNX-ray1.80A/B3-208[»]
5FKOX-ray1.85A3-208[»]
6FPLX-ray1.60A2-208[»]
6FPMX-ray1.85A2-208[»]
6FTSX-ray2.00A3-208[»]
6QJWX-ray2.10A2-208[»]
6QJXX-ray2.10A2-208[»]
6RBLX-ray1.90A2-208[»]
6RBMX-ray2.05A2-208[»]
6RCRX-ray2.05A2-208[»]
6RGXX-ray1.80A/B3-208[»]
SASBDBiP0ACT4
SMRiP0ACT4
ModBaseiSearch...
PDBe-KBiSearch...

Genome annotation databases

GeneIDi57003284
60594526

Miscellaneous databases

EvolutionaryTraceiP0ACT4

Family and domain databases

InterProiView protein in InterPro
IPR023772, DNA-bd_HTH_TetR-type_CS
IPR009057, Homeobox-like_sf
IPR001647, HTH_TetR
IPR004111, Repressor_TetR_C
IPR003012, Tet_transcr_reg_TetR
IPR036271, Tet_transcr_reg_TetR-rel_C_sf
PfamiView protein in Pfam
PF02909, TetR_C_1, 1 hit
PF00440, TetR_N, 1 hit
PRINTSiPR00455, HTHTETR
PR00400, TETREPRESSOR
SUPFAMiSSF46689, SSF46689, 1 hit
SSF48498, SSF48498, 1 hit
PROSITEiView protein in PROSITE
PS01081, HTH_TETR_1, 1 hit
PS50977, HTH_TETR_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 nameiTETR4_ECOLX
<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: P0ACT4
Secondary accession number(s): P09164
<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 22, 2005
Last sequence update: January 23, 2007
Last modified: April 7, 2021
This is version 95 of the entry and version 2 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, Plasmid

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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