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UniProtKB - P0AEC3 (ARCB_ECOLI)

UniProt

P0AEC3 - ARCB_ECOLI

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Protein

Aerobic respiration control sensor protein ArcB

Gene

arcB

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Member of the two-component regulatory system ArcB/ArcA. Sensor-regulator protein for anaerobic repression of the arc modulon. Activates ArcA via a four-step phosphorelay. ArcB can also dephosphorylate ArcA by a reverse phosphorelay involving His-717 and Asp-576.

Catalytic activityi

ATP + protein L-histidine = ADP + protein N-phospho-L-histidine.

GO - Molecular functioni

  • ATP binding Source: UniProtKB-KW
  • histidine phosphotransfer kinase activity Source: EcoCyc
  • phosphorelay sensor kinase activity Source: EcoCyc

GO - Biological processi

  • phosphorelay signal transduction system Source: EcoCyc
  • protein autophosphorylation Source: CACAO
  • regulation of transcription, DNA-templated Source: UniProtKB-KW
  • transcription, DNA-templated Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Transferase

Keywords - Biological processi

Transcription, Transcription regulation, Two-component regulatory system

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciEcoCyc:ARCB-MONOMER.
ECOL316407:JW5536-MONOMER.
BRENDAi2.7.13.3. 2026.

Names & Taxonomyi

Protein namesi
Recommended name:
Aerobic respiration control sensor protein ArcB (EC:2.7.13.3)
Gene namesi
Name:arcB
Ordered Locus Names:b3210, JW5536
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Escherichia ›
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG10062. arcB.

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 2525CytoplasmicSequence analysisAdd
BLAST
Transmembranei26 – 4621HelicalSequence analysisAdd
BLAST
Topological domaini47 – 5711PeriplasmicSequence analysisAdd
BLAST
Transmembranei58 – 7821HelicalSequence analysisAdd
BLAST
Topological domaini79 – 778700CytoplasmicSequence analysisAdd
BLAST

GO - Cellular componenti

  • integral component of membrane Source: EcoCyc
  • intracellular Source: GOC
  • plasma membrane Source: EcoCyc
Complete GO annotation...

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Mutagenesisi292 – 2921H → Q: Loss of activity. 1 Publication
Mutagenesisi576 – 5761D → A: Loss of activity. 1 Publication
Mutagenesisi717 – 7171H → Q: Loss of activity. 1 Publication

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 778778Aerobic respiration control sensor protein ArcBPRO_0000074684Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei292 – 2921Phosphohistidine; by autocatalysisPROSITE-ProRule annotation1 Publication
Modified residuei576 – 57614-aspartylphosphateCurated
Modified residuei717 – 7171Phosphohistidine1 Publication

Post-translational modificationi

Activation requires a sequential transfer of a phosphate group from a His in the primary transmitter domain, to an Asp in the receiver domain and to a His in the secondary transmitter domain.

Keywords - PTMi

Phosphoprotein

Proteomic databases

EPDiP0AEC3.
PaxDbiP0AEC3.
PRIDEiP0AEC3.

PTM databases

iPTMnetiP0AEC3.

Interactioni

Protein-protein interaction databases

BioGridi4263422. 370 interactions.
DIPiDIP-47915N.
IntActiP0AEC3. 7 interactions.
MINTiMINT-98513.
STRINGi511145.b3210.

Structurei

Secondary structure

1
778
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi27 – 4519Combined sources
Beta strandi50 – 545Combined sources
Turni58 – 603Combined sources
Helixi61 – 7818Combined sources
Helixi660 – 6645Combined sources
Helixi667 – 67610Combined sources
Helixi679 – 70527Combined sources
Helixi709 – 72517Combined sources
Helixi729 – 73810Combined sources
Helixi746 – 77530Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1A0BX-ray2.06A654-778[»]
1BDJX-ray2.68B654-778[»]
1FR0NMR-A654-778[»]
2A0BX-ray1.57A654-778[»]
2KSDNMR-A1-115[»]
ProteinModelPortaliP0AEC3.
SMRiP0AEC3. Positions 15-89, 276-503, 528-646, 659-776.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP0AEC3.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini153 – 22371PASPROSITE-ProRule annotationAdd
BLAST
Domaini226 – 27853PACPROSITE-ProRule annotationAdd
BLAST
Domaini289 – 507219Histidine kinasePROSITE-ProRule annotationAdd
BLAST
Domaini527 – 643117Response regulatoryPROSITE-ProRule annotationAdd
BLAST
Domaini678 – 77194HPtPROSITE-ProRule annotationAdd
BLAST

Sequence similaritiesi

Contains 1 histidine kinase domain.PROSITE-ProRule annotation
Contains 1 HPt domain.PROSITE-ProRule annotation
Contains 1 PAC (PAS-associated C-terminal) domain.PROSITE-ProRule annotation
Contains 1 PAS (PER-ARNT-SIM) domain.PROSITE-ProRule annotation
Contains 1 response regulatory domain.PROSITE-ProRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105BZU. Bacteria.
COG0642. LUCA.
COG0784. LUCA.
COG2198. LUCA.
HOGENOMiHOG000272667.
InParanoidiP0AEC3.
KOiK07648.
OMAiIGSSIMR.
PhylomeDBiP0AEC3.

Family and domain databases

Gene3Di1.10.287.130. 1 hit.
1.10.287.970. 1 hit.
1.20.120.160. 1 hit.
3.30.565.10. 1 hit.
InterProiIPR027460. ArcB_TM.
IPR011006. CheY-like_superfamily.
IPR003594. HATPase_C.
IPR005467. His_kinase_dom.
IPR003661. HisK_dim/P.
IPR000014. PAS.
IPR000700. PAS-assoc_C.
IPR013767. PAS_fold.
IPR004358. Sig_transdc_His_kin-like_C.
IPR008207. Sig_transdc_His_kin_Hpt_dom.
IPR014409. Sig_transdc_His_kin_hyb_ArcB.
IPR001789. Sig_transdc_resp-reg_receiver.
[Graphical view]
PfamiPF02518. HATPase_c. 1 hit.
PF00512. HisKA. 1 hit.
PF01627. Hpt. 1 hit.
PF00989. PAS. 1 hit.
PF00072. Response_reg. 1 hit.
[Graphical view]
PIRSFiPIRSF003182. ArcB. 1 hit.
PRINTSiPR00344. BCTRLSENSOR.
SMARTiSM00387. HATPase_c. 1 hit.
SM00388. HisKA. 1 hit.
SM00073. HPT. 1 hit.
SM00091. PAS. 1 hit.
SM00448. REC. 1 hit.
[Graphical view]
SUPFAMiSSF47226. SSF47226. 1 hit.
SSF47384. SSF47384. 1 hit.
SSF52172. SSF52172. 1 hit.
SSF55785. SSF55785. 1 hit.
SSF55874. SSF55874. 1 hit.
TIGRFAMsiTIGR00229. sensory_box. 1 hit.
PROSITEiPS50109. HIS_KIN. 1 hit.
PS50894. HPT. 1 hit.
PS50113. PAC. 1 hit.
PS50112. PAS. 1 hit.
PS50110. RESPONSE_REGULATORY. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P0AEC3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKQIRLLAQY YVDLMMKLGL VRFSMLLALA LVVLAIVVQM AVTMVLHGQV 
        60         70         80         90        100
ESIDVIRSIF FGLLITPWAV YFLSVVVEQL EESRQRLSRL VQKLEEMRER 
       110        120        130        140        150
DLSLNVQLKD NIAQLNQEIA VREKAEAELQ ETFGQLKIEI KEREETQIQL 
       160        170        180        190        200
EQQSSFLRSF LDASPDLVFY RNEDKEFSGC NRAMELLTGK SEKQLVHLKP 
       210        220        230        240        250
ADVYSPEAAA KVIETDEKVF RHNVSLTYEQ WLDYPDGRKA CFEIRKVPYY 
       260        270        280        290        300
DRVGKRHGLM GFGRDITERK RYQDALERAS RDKTTFISTI SHELRTPLNG 
       310        320        330        340        350
IVGLSRILLD TELTAEQEKY LKTIHVSAVT LGNIFNDIID MDKMERRKVQ 
       360        370        380        390        400
LDNQPVDFTS FLADLENLSA LQAQQKGLRF NLEPTLPLPH QVITDGTRLR 
       410        420        430        440        450
QILWNLISNA VKFTQQGQVT VRVRYDEGDM LHFEVEDSGI GIPQDELDKI 
       460        470        480        490        500
FAMYYQVKDS HGGKPATGTG IGLAVSRRLA KNMGGDITVT SEQGKGSTFT 
       510        520        530        540        550
LTIHAPSVAE EVDDAFDEDD MPLPALNVLL VEDIELNVIV ARSVLEKLGN 
       560        570        580        590        600
SVDVAMTGKA ALEMFKPGEY DLVLLDIQLP DMTGLDISRE LTKRYPREDL 
       610        620        630        640        650
PPLVALTANV LKDKQEYLNA GMDDVLSKPL SVPALTAMIK KFWDTQDDEE 
       660        670        680        690        700
STVTTEENSK SEALLDIPML EQYLELVGPK LITDGLAVFE KMMPGYVSVL 
       710        720        730        740        750
ESNLTAQDKK GIVEEGHKIK GAAGSVGLRH LQQLGQQIQS PDLPAWEDNV 
       760        770 
GEWIEEMKEE WRHDVEVLKA WVAKATKK
Length:778
Mass (Da):87,983
Last modified:December 6, 2005 - v1
Checksum:iDD61EA6ECF95AD30
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti469 – 4702Missing in AAA58012 (PubMed:9278503).Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X53315 Genomic DNA. Translation: CAA37397.1.
U18997 Genomic DNA. Translation: AAA58012.1.
U00096 Genomic DNA. Translation: AAT48172.1.
AP009048 Genomic DNA. Translation: BAE77254.1.
PIRiD65112. RGECAR.
RefSeqiWP_000809774.1. NZ_LN832404.1.
YP_026207.1. NC_000913.3.

Genome annotation databases

EnsemblBacteriaiAAT48172; AAT48172; b3210.
BAE77254; BAE77254; BAE77254.
GeneIDi947887.
KEGGiecj:JW5536.
eco:b3210.
PATRICi32121840. VBIEscCol129921_3304.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X53315 Genomic DNA. Translation: CAA37397.1.
U18997 Genomic DNA. Translation: AAA58012.1.
U00096 Genomic DNA. Translation: AAT48172.1.
AP009048 Genomic DNA. Translation: BAE77254.1.
PIRiD65112. RGECAR.
RefSeqiWP_000809774.1. NZ_LN832404.1.
YP_026207.1. NC_000913.3.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1A0BX-ray2.06A654-778[»]
1BDJX-ray2.68B654-778[»]
1FR0NMR-A654-778[»]
2A0BX-ray1.57A654-778[»]
2KSDNMR-A1-115[»]
ProteinModelPortaliP0AEC3.
SMRiP0AEC3. Positions 15-89, 276-503, 528-646, 659-776.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi4263422. 370 interactions.
DIPiDIP-47915N.
IntActiP0AEC3. 7 interactions.
MINTiMINT-98513.
STRINGi511145.b3210.

PTM databases

iPTMnetiP0AEC3.

Proteomic databases

EPDiP0AEC3.
PaxDbiP0AEC3.
PRIDEiP0AEC3.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAT48172; AAT48172; b3210.
BAE77254; BAE77254; BAE77254.
GeneIDi947887.
KEGGiecj:JW5536.
eco:b3210.
PATRICi32121840. VBIEscCol129921_3304.

Organism-specific databases

EchoBASEiEB0060.
EcoGeneiEG10062. arcB.

Phylogenomic databases

eggNOGiENOG4105BZU. Bacteria.
COG0642. LUCA.
COG0784. LUCA.
COG2198. LUCA.
HOGENOMiHOG000272667.
InParanoidiP0AEC3.
KOiK07648.
OMAiIGSSIMR.
PhylomeDBiP0AEC3.

Enzyme and pathway databases

BioCyciEcoCyc:ARCB-MONOMER.
ECOL316407:JW5536-MONOMER.
BRENDAi2.7.13.3. 2026.

Miscellaneous databases

EvolutionaryTraceiP0AEC3.
PROiP0AEC3.

Family and domain databases

Gene3Di1.10.287.130. 1 hit.
1.10.287.970. 1 hit.
1.20.120.160. 1 hit.
3.30.565.10. 1 hit.
InterProiIPR027460. ArcB_TM.
IPR011006. CheY-like_superfamily.
IPR003594. HATPase_C.
IPR005467. His_kinase_dom.
IPR003661. HisK_dim/P.
IPR000014. PAS.
IPR000700. PAS-assoc_C.
IPR013767. PAS_fold.
IPR004358. Sig_transdc_His_kin-like_C.
IPR008207. Sig_transdc_His_kin_Hpt_dom.
IPR014409. Sig_transdc_His_kin_hyb_ArcB.
IPR001789. Sig_transdc_resp-reg_receiver.
[Graphical view]
PfamiPF02518. HATPase_c. 1 hit.
PF00512. HisKA. 1 hit.
PF01627. Hpt. 1 hit.
PF00989. PAS. 1 hit.
PF00072. Response_reg. 1 hit.
[Graphical view]
PIRSFiPIRSF003182. ArcB. 1 hit.
PRINTSiPR00344. BCTRLSENSOR.
SMARTiSM00387. HATPase_c. 1 hit.
SM00388. HisKA. 1 hit.
SM00073. HPT. 1 hit.
SM00091. PAS. 1 hit.
SM00448. REC. 1 hit.
[Graphical view]
SUPFAMiSSF47226. SSF47226. 1 hit.
SSF47384. SSF47384. 1 hit.
SSF52172. SSF52172. 1 hit.
SSF55785. SSF55785. 1 hit.
SSF55874. SSF55874. 1 hit.
TIGRFAMsiTIGR00229. sensory_box. 1 hit.
PROSITEiPS50109. HIS_KIN. 1 hit.
PS50894. HPT. 1 hit.
PS50113. PAC. 1 hit.
PS50112. PAS. 1 hit.
PS50110. RESPONSE_REGULATORY. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiARCB_ECOLI
AccessioniPrimary (citable) accession number: P0AEC3
Secondary accession number(s): P22763, Q2M902
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 6, 2005
Last sequence update: December 6, 2005
Last modified: September 7, 2016
This is version 108 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.