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UniProtKB - P08394 (RECB_ECOLI)

Entry version 183 (07 Apr 2021)
Sequence version 1 (01 Aug 1988)
Previous versions | rss
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Protein

RecBCD enzyme subunit RecB

Gene

recB

Organism
Escherichia coli (strain K12)
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

A helicase/nuclease that prepares dsDNA breaks (DSB) for recombinational DNA repair. Binds to DSBs and unwinds DNA via a rapid (>1 kb/second) and highly processive (>30 kb) ATP-dependent bidirectional helicase. Unwinds dsDNA until it encounters a Chi (crossover hotspot instigator, 5'-GCTGGTGG-3') sequence from the 3' direction. Cuts ssDNA a few nucleotides 3' to Chi site, by nicking one strand or switching the strand degraded (depending on the reaction conditions). The properties and activities of the enzyme are changed at Chi. The Chi-altered holoenzyme produces a long 3'-ssDNA overhang which facilitates RecA-binding to the ssDNA for homologous DNA recombination and repair. Holoenzyme degrades any linearized DNA that is unable to undergo homologous recombination (PubMed:4562392, PubMed:4552016, PubMed:123277). In the holoenzyme this subunit contributes ATPase, 3'-5' helicase, exonuclease activity and loads RecA onto ssDNA. The RecBC complex requires the RecD subunit for nuclease activity, but can translocate along ssDNA in both directions.22 Publications

<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

  • Exonucleolytic cleavage (in the presence of ATP) in either 5'- to 3'- or 3'- to 5'-direction to yield 5'-phosphooligonucleotides.UniRule annotation EC:3.1.11.5

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Mg2+UniRule annotationCurated3 PublicationsNote: Magnesium is required for both helicase and nuclease activity; its relative concentration alters helicase speed and nuclease activity in a complicated fashion.UniRule annotationCurated3 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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

After reacting with DNA bearing a Chi site the holoenzyme is disassembled and loses exonuclease activity, DNA unwinding and Chi-directed DNA cleavage; RecB remains complexed with ssDNA, which may prevent holoenzyme reassembly (PubMed:10197988). High levels of Mg2+ (13 mM MgCl2+) or incubation with DNase allow holoenyzme reassembly, suggesting it is DNA bound to RecB that prevents reassembly (PubMed:10197988).2 Publications

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 bindingi956Magnesium; via tele nitrogenCurated1
Metal bindingi1067MagnesiumCurated1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei1080For nuclease activity2 Publications1
Metal bindingi1080MagnesiumCurated1
Metal bindingi1081Magnesium; via carbonyl oxygenCurated1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi23 – 30ATP8
<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 bindingi252 – 2543
DNA bindingi511 – 5122
DNA bindingi560 – 5612
DNA bindingi7611

<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, Exonuclease, Helicase, Hydrolase, Nuclease
Biological processDNA damage, DNA repair
LigandATP-binding, Magnesium, Metal-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...BioCyci		EcoCyc:EG10824-MONOMER
MetaCyc:EG10824-MONOMER

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		3.1.11.5, 2026

<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:
RecBCD enzyme subunit RecBUniRule annotation (EC:3.1.11.5UniRule annotation)
Alternative name(s):
Exodeoxyribonuclease V 135 kDa polypeptide
Exodeoxyribonuclease V beta chain
Exonuclease V subunit RecBUniRule annotation
Short name:
ExoV subunit RecBUniRule annotation
Helicase/nuclease RecBCD subunit RecBUniRule annotation
<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:recBUniRule annotation
Synonyms:ior, rorA
Ordered Locus Names:b2820, JW2788
<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 (strain K12)
<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 identifieri83333 [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 subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000000318 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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
  • UP000000625 Componenti: Chromosome

<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

Decreased degradation of DNA with free ends that is unable to undergo homologous recombination, which can fortuitously lead to more efficient viral infection (PubMed:4562392, PubMed:123277). Cells are deficient in DNA recombination repair and have increased sensitivity to UV light. The cultures have many inviable cells.3 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'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>Mutagenesisi29K → Q: Subunit loses ATPase and 3'-5' helicase activity, holoenzyme has 3-5 fold less helicase activity, 20-fold less processivity. 3 Publications1
Mutagenesisi803Y → H: Large decrease in recombination, loss of Chi hotspot activity, decreased RecB helicase rate, retains nuclease activity but not Chi-sequence specificity, does not load RecA. 1 Publication1
Mutagenesisi804V → E: Large decrease in recombination, loss of Chi hotspot activity, decreased RecB helicase rate, retains nuclease activity but not Chi-sequence specificity, does not load RecA. 1 Publication1
Mutagenesisi807T → I in recB-2109; absence of nuclease modification at Chi sites. 1 Publication1
Mutagenesisi1067D → A: Subunit loses nuclease activity. 1 Publication1
Mutagenesisi1080D → A: Loss of holoenzyme nuclease activity, retains full helicase activity, does not act at Chi, no loading of RecA on ssDNA and no recombinational repair. 3 Publications1

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL2095232

<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 methionineiRemoved1 Publication
<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_00001020462 – 1180RecBCD enzyme subunit RecBAdd BLAST1179

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P08394

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

More...PaxDbi		P08394

PRoteomics IDEntifications database

More...PRIDEi		P08394

<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

Heterotrimer of RecB, RecC and RecD. All subunits contribute to DNA-binding. The C-terminus interacts with RecA (PubMed:16483938).

Interacts with YgbT (Cas1) (PubMed:21219465).

8 Publications

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		4262307, 585 interactors
851614, 3 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...ComplexPortali		CPX-2197, Exodeoxyribonuclease V complex

Database of interacting proteins

More...DIPi		DIP-540N

Protein interaction database and analysis system

More...IntActi		P08394, 20 interactors

Molecular INTeraction database

More...MINTi		P08394

STRING: functional protein association networks

More...STRINGi		511145.b2820

<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

11180
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		P08394

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		P08394

<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>Domaini2 – 450UvrD-like helicase ATP-bindingUniRule annotationAdd BLAST449
Domaini480 – 746UvrD-like helicase C-terminalUniRule annotationAdd BLAST267

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>Regioni2 – 927ATPase, DNA-binding and helicase activity, interacts with RecCAdd BLAST926
Regioni928 – 1180Nuclease activity, interacts with RecD and RecAAdd BLAST253

<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 N-terminal DNA-binding domain (residues 1-929) is a ssDNA-dependent ATPase and has ATP-dependent 3'-5' helicase function; both are stimulated in the presence of RecC, suggesting this domain interacts with RecC. Holoenzyme reconstituted with this RecB N-terminal fragment has no nuclease activity (PubMed:9448271). The C-terminal domain (residues 928-1180) has weak ssDNA endonuclease activity as an isolated fragment (PubMed:9790841) (PubMed:10518611). RecD probably interacts with this domain. The C-terminal domain interacts with RecA, facilitating its loading onto ssDNA. Interaction is decreased by ATP (PubMed:16483938).4 Publications
The holoenzyme may undergo conformational shifts upon DNA binding: the nuclease domain of RecB may swing away from the DNA exit tunnel in RecC. When Chi DNA binds to the RecC tunnel, the nuclease domain may then swing back to its original position (that seen in crystal structures), allowing it to nick the DNA 3' of the Chi site and then rotate to load RecA. At high Mg2+ the nuclease domain may swing back more frequently, explaining differences seen in assays performed at high Mg2+.1 Publication

<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 helicase family. UvrD subfamily.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		COG1074, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_001114_6_0_6

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P08394

Database for complete collections of gene phylogenies

More...PhylomeDBi		P08394

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.90.320.10, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_01485, RecB, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR014017, DNA_helicase_UvrD-like_C
IPR000212, DNA_helicase_UvrD/REP
IPR011604, Exonuc_phg/RecB_C
IPR027417, P-loop_NTPase
IPR038726, PDDEXK_AddAB-type
IPR004586, RecB
IPR011335, Restrct_endonuc-II-like
IPR014016, UvrD-like_ATP-bd
IPR034739, UvrD/AddA_N

The PANTHER Classification System

More...PANTHERi		PTHR11070, PTHR11070, 1 hit
PTHR11070:SF23, PTHR11070:SF23, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF12705, PDDEXK_1, 1 hit
PF00580, UvrD-helicase, 1 hit
PF13361, UvrD_C, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52540, SSF52540, 1 hit
SSF52980, SSF52980, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR00609, recB, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS51198, UVRD_HELICASE_ATP_BIND, 1 hit
PS51217, UVRD_HELICASE_CTER, 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.

P08394-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSDVAETLDP LRLPLQGERL IEASAGTGKT FTIAALYLRL LLGLGGSAAF 
        60         70         80         90        100
PRPLTVEELL VVTFTEAATA ELRGRIRSNI HELRIACLRE TTDNPLYERL 
       110        120        130        140        150
LEEIDDKAQA AQWLLLAERQ MDEAAVFTIH GFCQRMLNLN AFESGMLFEQ 
       160        170        180        190        200
QLIEDESLLR YQACADFWRR HCYPLPREIA QVVFETWKGP QALLRDINRY 
       210        220        230        240        250
LQGEAPVIKA PPPDDETLAS RHAQIVARID TVKQQWRDAV GELDALIESS 
       260        270        280        290        300
GIDRRKFNRS NQAKWIDKIS AWAEEETNSY QLPESLEKFS QRFLEDRTKA 
       310        320        330        340        350
GGETPRHPLF EAIDQLLAEP LSIRDLVITR ALAEIRETVA REKRRRGELG 
       360        370        380        390        400
FDDMLSRLDS ALRSESGEVL AAAIRTRFPV AMIDEFQDTD PQQYRIFRRI 
       410        420        430        440        450
WHHQPETALL LIGDPKQAIY AFRGADIFTY MKARSEVHAH YTLDTNWRSA 
       460        470        480        490        500
PGMVNSVNKL FSQTDDAFMF REIPFIPVKS AGKNQALRFV FKGETQPAMK 
       510        520        530        540        550
MWLMEGESCG VGDYQSTMAQ VCAAQIRDWL QAGQRGEALL MNGDDARPVR 
       560        570        580        590        600
ASDISVLVRS RQEAAQVRDA LTLLEIPSVY LSNRDSVFET LEAQEMLWLL 
       610        620        630        640        650
QAVMTPEREN TLRSALATSM MGLNALDIET LNNDEHAWDV VVEEFDGYRQ 
       660        670        680        690        700
IWRKRGVMPM LRALMSARNI AENLLATAGG ERRLTDILHI SELLQEAGTQ 
       710        720        730        740        750
LESEHALVRW LSQHILEPDS NASSQQMRLE SDKHLVQIVT IHKSKGLEYP 
       760        770        780        790        800
LVWLPFITNF RVQEQAFYHD RHSFEAVLDL NAAPESVDLA EAERLAEDLR 
       810        820        830        840        850
LLYVALTRSV WHCSLGVAPL VRRRGDKKGD TDVHQSALGR LLQKGEPQDA 
       860        870        880        890        900
AGLRTCIEAL CDDDIAWQTA QTGDNQPWQV NDVSTAELNA KTLQRLPGDN 
       910        920        930        940        950
WRVTSYSGLQ QRGHGIAQDL MPRLDVDAAG VASVVEEPTL TPHQFPRGAS 
       960        970        980        990       1000
PGTFLHSLFE DLDFTQPVDP NWVREKLELG GFESQWEPVL TEWITAVLQA 
      1010       1020       1030       1040       1050
PLNETGVSLS QLSARNKQVE MEFYLPISEP LIASQLDTLI RQFDPLSAGC 
      1060       1070       1080       1090       1100
PPLEFMQVRG MLKGFIDLVF RHEGRYYLLD YKSNWLGEDS SAYTQQAMAA 
      1110       1120       1130       1140       1150
AMQAHRYDLQ YQLYTLALHR YLRHRIADYD YEHHFGGVIY LFLRGVDKEH 
      1160       1170       1180
PQQGIYTTRP NAGLIALMDE MFAGMTLEEA
Length:1,180
Mass (Da):133,959
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:iF9AC331808E8F281
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
X04581 Genomic DNA Translation: CAA28250.1
AF179304 Genomic DNA Translation: AAD56369.1
U29581 Genomic DNA Translation: AAB40467.1
U00096 Genomic DNA Translation: AAC75859.1
AP009048 Genomic DNA Translation: BAE76889.1
X06227 Genomic DNA Translation: CAA29577.1
X04582 Genomic DNA Translation: CAA28252.1

Protein sequence database of the Protein Information Resource

More...PIRi		A25532, NCECX5

NCBI Reference Sequences

More...RefSeqi		NP_417297.1, NC_000913.3
WP_001285993.1, NZ_LN832404.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...EnsemblBacteriai		AAC75859; AAC75859; b2820
BAE76889; BAE76889; BAE76889

Database of genes from NCBI RefSeq genomes

More...GeneIDi		947286

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ecj:JW2788
eco:b2820

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|1411691.4.peg.3916

<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
X04581 Genomic DNA Translation: CAA28250.1
AF179304 Genomic DNA Translation: AAD56369.1
U29581 Genomic DNA Translation: AAB40467.1
U00096 Genomic DNA Translation: AAC75859.1
AP009048 Genomic DNA Translation: BAE76889.1
X06227 Genomic DNA Translation: CAA29577.1
X04582 Genomic DNA Translation: CAA28252.1
PIRiA25532, NCECX5
RefSeqiNP_417297.1, NC_000913.3
WP_001285993.1, NZ_LN832404.1

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
1W36X-ray3.10B/E1-1180[»]
3K70X-ray3.59B/E1-1180[»]
5LD2electron microscopy3.83B1-1180[»]
5MBVelectron microscopy3.80B1-1180[»]
6SJBelectron microscopy3.70B1-1180[»]
6SJEelectron microscopy4.10B1-1180[»]
6SJFelectron microscopy3.90B1-1180[»]
6SJGelectron microscopy3.80B1-1180[»]
6T2Uelectron microscopy3.60B1-1180[»]
6T2Velectron microscopy3.80B1-1180[»]
SMRiP08394
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi4262307, 585 interactors
851614, 3 interactors
ComplexPortaliCPX-2197, Exodeoxyribonuclease V complex
DIPiDIP-540N
IntActiP08394, 20 interactors
MINTiP08394
STRINGi511145.b2820

Chemistry databases

ChEMBLiCHEMBL2095232

Proteomic databases

jPOSTiP08394
PaxDbiP08394
PRIDEiP08394

Genome annotation databases

EnsemblBacteriaiAAC75859; AAC75859; b2820
BAE76889; BAE76889; BAE76889
GeneIDi947286
KEGGiecj:JW2788
eco:b2820
PATRICifig|1411691.4.peg.3916

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...EchoBASEi		EB0817

Phylogenomic databases

eggNOGiCOG1074, Bacteria
HOGENOMiCLU_001114_6_0_6
InParanoidiP08394
PhylomeDBiP08394

Enzyme and pathway databases

BioCyciEcoCyc:EG10824-MONOMER
MetaCyc:EG10824-MONOMER
BRENDAi3.1.11.5, 2026

Miscellaneous databases

EvolutionaryTraceiP08394

Protein Ontology

More...PROi		PR:P08394

Family and domain databases

Gene3Di3.90.320.10, 1 hit
HAMAPiMF_01485, RecB, 1 hit
InterProiView protein in InterPro
IPR014017, DNA_helicase_UvrD-like_C
IPR000212, DNA_helicase_UvrD/REP
IPR011604, Exonuc_phg/RecB_C
IPR027417, P-loop_NTPase
IPR038726, PDDEXK_AddAB-type
IPR004586, RecB
IPR011335, Restrct_endonuc-II-like
IPR014016, UvrD-like_ATP-bd
IPR034739, UvrD/AddA_N
PANTHERiPTHR11070, PTHR11070, 1 hit
PTHR11070:SF23, PTHR11070:SF23, 1 hit
PfamiView protein in Pfam
PF12705, PDDEXK_1, 1 hit
PF00580, UvrD-helicase, 1 hit
PF13361, UvrD_C, 1 hit
SUPFAMiSSF52540, SSF52540, 1 hit
SSF52980, SSF52980, 1 hit
TIGRFAMsiTIGR00609, recB, 1 hit
PROSITEiView protein in PROSITE
PS51198, UVRD_HELICASE_ATP_BIND, 1 hit
PS51217, UVRD_HELICASE_CTER, 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 nameiRECB_ECOLI
<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: P08394
Secondary accession number(s): Q2MA17
<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: August 1, 1988
Last sequence update: August 1, 1988
Last modified: April 7, 2021
This is version 183 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
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