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Entry version 123 (12 Aug 2020)
Sequence version 1 (01 Oct 1996)
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Protein

Autoinducer 2 sensor kinase/phosphatase LuxQ

Gene

luxQ

Organism
Vibrio harveyi (Beneckea harveyi)
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

At low cell density, in absence of AI-2 (autoinducer 2), LuxQ has a kinase activity and autophosphorylates on a histidine residue. The phosphoryl group is then transferred to an aspartate residue in the response regulator domain. The phosphoryl group is transferred to LuxU, and ultimately to LuxO. At high cell density, in the presence of AI-2, the kinase activity is inactivated, and the response regulator domain has a phosphatase activity.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

  • ATP + protein L-histidine = ADP + protein N-phospho-L-histidine. EC:2.7.13.3

<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

  • signal transduction by protein phosphorylation Source: CACAO

<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 functionHydrolase, Kinase, Protein phosphatase, Transferase
Biological processTwo-component regulatory system
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
2.7.13.3, 6632

<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:
Autoinducer 2 sensor kinase/phosphatase LuxQ (EC:2.7.13.3, EC:3.1.3.-)
<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:luxQ
<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>OrganismiVibrio harveyi (Beneckea harveyi)
<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 identifieri669 [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 lineageiBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaeVibrio

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei15 – 35HelicalSequence analysisAdd BLAST21
Transmembranei280 – 300HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

<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_00000747831 – 859Autoinducer 2 sensor kinase/phosphatase LuxQAdd BLAST859

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei492Phosphohistidine; by autocatalysisPROSITE-ProRule annotation1
Modified residuei7854-aspartylphosphatePROSITE-ProRule annotation1

Keywords - PTMi

Phosphoprotein

<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

Binds the complex formed by AI-2 and LuxP.

<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

Protein interaction database and analysis system

More...
IntActi
P54302, 1 interactor

<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

1859
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
P54302

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
P54302

<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>Domaini489 – 711Histidine kinasePROSITE-ProRule annotationAdd BLAST223
Domaini736 – 851Response regulatoryPROSITE-ProRule annotationAdd BLAST116

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00082, HisKA, 1 hit
cd00156, REC, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.450.220, 1 hit
3.30.565.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR011006, CheY-like_superfamily
IPR003594, HATPase_C
IPR036890, HATPase_C_sf
IPR005467, His_kinase_dom
IPR003661, HisK_dim/P
IPR036097, HisK_dim/P_sf
IPR015387, LuxQ-periplasm
IPR043056, LuxQ-periplasm_N
IPR029151, Sensor-like_sf
IPR004358, Sig_transdc_His_kin-like_C
IPR001789, Sig_transdc_resp-reg_receiver

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02518, HATPase_c, 1 hit
PF00512, HisKA, 1 hit
PF09308, LuxQ-periplasm, 1 hit
PF00072, Response_reg, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00344, BCTRLSENSOR

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00387, HATPase_c, 1 hit
SM00388, HisKA, 1 hit
SM00448, REC, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF103190, SSF103190, 1 hit
SSF47384, SSF47384, 1 hit
SSF52172, SSF52172, 1 hit
SSF55874, SSF55874, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50109, HIS_KIN, 1 hit
PS50110, RESPONSE_REGULATORY, 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.

P54302-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTTTRSNIKK RRSLATLITK IIILVLAPII LGIFIQSYYF SKQIIWQEVD
60 70 80 90 100
RTKQQTSALI HNIFDSHFAA IQIHHDSNSK SEVIRDFYTD RDTDVLNFFF
110 120 130 140 150
LSIDQSDPSH TPEFRFLTDH KGIIWDDGNA HFYGVNDLIL DSLANRVSFS
160 170 180 190 200
NNWYYINVMT SIGSRHMLVR RVPILDPSTG EVLGFSFNAV VLDNNFALME
210 220 230 240 250
KLKSESNVDN VVLVANSVPL ANSLIGDEPY NVADVLQRKS SDKRLDKLLV
260 270 280 290 300
IETPIVVNAV TTELCLLTVQ DNQSVVTLQI QHILAMLASI IGMIMIALMS
310 320 330 340 350
REWIESKVSA QLESLMSYTR SAREEKGFER FGGSDIEEFD HIGSTLESTF
360 370 380 390 400
EELEAQKKSF RDLFNFALSP IMVWSEESVL IQMNPAARKE LVIEDDHEIM
410 420 430 440 450
HPVFQGFKEK LTPHLKMAAQ GATLTGVNVP IGNKIYRWNL SPIRVDGDIS
460 470 480 490 500
GIIVQGQDIT TLIEAEKQSN IARREAEKSA QARADFLAKM SHEIRTPING
510 520 530 540 550
ILGVAQLLKD SVDTQEQKNQ IDVLCHSGEH LLAVLNDILD FSKIEQGKFN
560 570 580 590 600
IQKHPFSFTD TMRTLENIYR PICTNKGVEL VIENELDPNV EIFTDQVRLN
610 620 630 640 650
QILFNLVSNA VKFTPIGSIR LHAELEQFYG AENSVLVVEL TDTGIGIESD
660 670 680 690 700
KLDQMFEPFV QEESTTTREY GGSGLGLTIV KNLVDMLEGD VQVRSSKGGG
710 720 730 740 750
TTFVITLPVK DRERVLRPLE VSQRIKPEAL FDESLKVLLV EDNHTNAFIL
760 770 780 790 800
QAFCKKYKMQ VDWAKDGLDA MELLSDTTYD LILMDNQLPH LGGIETTHEI
810 820 830 840 850
RQNLRLGTPI YACTADTAKE TSDAFMAAGA NYVMLKPIKE NALHEAFVDF

KQRFLVERT
Length:859
Mass (Da):96,915
Last modified:October 1, 1996 - 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:iAB2171F454C81060
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
U07069 Genomic DNA Translation: AAA20838.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S49046

<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
U07069 Genomic DNA Translation: AAA20838.1
PIRiS49046

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
1ZHHX-ray1.94B39-278[»]
2HJ9X-ray2.34C/D53-271[»]
2HJEX-ray1.70A53-271[»]
SMRiP54302
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

IntActiP54302, 1 interactor

Enzyme and pathway databases

BRENDAi2.7.13.3, 6632

Miscellaneous databases

EvolutionaryTraceiP54302

Family and domain databases

CDDicd00082, HisKA, 1 hit
cd00156, REC, 1 hit
Gene3Di3.30.450.220, 1 hit
3.30.565.10, 1 hit
InterProiView protein in InterPro
IPR011006, CheY-like_superfamily
IPR003594, HATPase_C
IPR036890, HATPase_C_sf
IPR005467, His_kinase_dom
IPR003661, HisK_dim/P
IPR036097, HisK_dim/P_sf
IPR015387, LuxQ-periplasm
IPR043056, LuxQ-periplasm_N
IPR029151, Sensor-like_sf
IPR004358, Sig_transdc_His_kin-like_C
IPR001789, Sig_transdc_resp-reg_receiver
PfamiView protein in Pfam
PF02518, HATPase_c, 1 hit
PF00512, HisKA, 1 hit
PF09308, LuxQ-periplasm, 1 hit
PF00072, Response_reg, 1 hit
PRINTSiPR00344, BCTRLSENSOR
SMARTiView protein in SMART
SM00387, HATPase_c, 1 hit
SM00388, HisKA, 1 hit
SM00448, REC, 1 hit
SUPFAMiSSF103190, SSF103190, 1 hit
SSF47384, SSF47384, 1 hit
SSF52172, SSF52172, 1 hit
SSF55874, SSF55874, 1 hit
PROSITEiView protein in PROSITE
PS50109, HIS_KIN, 1 hit
PS50110, RESPONSE_REGULATORY, 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 nameiLUXQ_VIBHA
<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: P54302
<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: October 1, 1996
Last sequence update: October 1, 1996
Last modified: August 12, 2020
This is version 123 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

Documents

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