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Protein

5'/3'-nucleotidase SurE

Gene

surE

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

Functioni

Nucleotidase with a broad substrate specificity as it can dephosphorylate various ribo- and deoxyribonucleoside 5'-monophosphates and ribonucleoside 3'-monophosphates with highest affinity to 3'-AMP. Also hydrolyzes polyphosphate (exopolyphosphatase activity) with the preference for short-chain-length substrates (P20-25). Might be involved in the regulation of dNTP and NTP pools, and in the turnover of 3'-mononucleotides produced by numerous intracellular RNases (T1, T2, and F) during the degradation of various RNAs. Also plays a significant physiological role in stress-response and is required for the survival of E.coli in stationary growth phase.1 Publication

Catalytic activityi

A 5'-ribonucleotide + H2O = a ribonucleoside + phosphate.
A 3'-ribonucleotide + H2O = a ribonucleoside + phosphate.
(Polyphosphate)(n) + H2O = (polyphosphate)(n-1) + phosphate.

Cofactori

Mn2+1 Publication, Co2+1 Publication, Ni2+1 Publication, Mg2+1 Publication, Zn2+1 PublicationNote: Binds 1 divalent metal cation per subunit. Highest nucleotidase activity with Mn(2+), followed by Co(2+), Ni(2+) and Mg(2+). Highest exopolyphosphatase activity with Mg(2+), followed by Co(2+) and Zn2+.1 Publication

Enzyme regulationi

Inhibited by various ribo- or deoxyribonucleoside 5'-triphosphates but is insensitive to nucleoside diphosphates.

Kineticsi

  1. KM=0.32 mM for 5'-AMP1 Publication
  2. KM=0.26 mM for 5'-GMP1 Publication
  3. KM=0.28 mM for 5'-dGMP1 Publication
  4. KM=0.10 mM for 3'-AMP1 Publication
  5. KM=0.37 mM for 3'-CMP1 Publication
  6. KM=2.49 mM for pNPP1 Publication
  7. KM=0.02 mM for polyphosphate1 Publication

Vmax=10.0 µmol/min/mg enzyme with 5'-AMP as substrate1 Publication

Vmax=22.4 µmol/min/mg enzyme with 5'-GMP as substrate1 Publication

Vmax=16.4 µmol/min/mg enzyme with 5'-dGMP as substrate1 Publication

Vmax=20.1 µmol/min/mg enzyme with 3'-AMP as substrate1 Publication

Vmax=12.1 µmol/min/mg enzyme with 3'-CMP as substrate1 Publication

Vmax=7.24 µmol/min/mg enzyme with pNPP as substrate1 Publication

Vmax=0.10 µmol/min/mg enzyme with polyphosphate as substrate1 Publication

pH dependencei

Optimum pH is 7.0-7.2 for nucleotidase activity.1 Publication

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi8 – 81Divalent metal cationBy similarity
Metal bindingi9 – 91Divalent metal cationBy similarity
Metal bindingi39 – 391Divalent metal cationBy similarity
Metal bindingi92 – 921Divalent metal cationBy similarity

GO - Molecular functioni

  1. 3'-nucleotidase activity Source: EcoCyc
  2. 5'-nucleotidase activity Source: EcoCyc
  3. exopolyphosphatase activity Source: EcoCyc
  4. manganese ion binding Source: EcoCyc
  5. nucleotide binding Source: UniProtKB-KW

GO - Biological processi

  1. dephosphorylation Source: GOC
  2. UMP catabolic process Source: EcoCyc
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase

Keywords - Ligandi

Cobalt, Magnesium, Manganese, Metal-binding, Nickel, Nucleotide-binding, Zinc

Enzyme and pathway databases

BioCyciEcoCyc:EG11817-MONOMER.
ECOL316407:JW2714-MONOMER.
MetaCyc:EG11817-MONOMER.
BRENDAi3.1.3.5. 2026.
SABIO-RKP0A840.

Names & Taxonomyi

Protein namesi
Recommended name:
5'/3'-nucleotidase SurE (EC:3.1.3.5, EC:3.1.3.6)
Alternative name(s):
Exopolyphosphatase (EC:3.6.1.11)
Nucleoside monophosphate phosphohydrolase
Stationary-phase survival protein SurE
Gene namesi
Name:surE
Synonyms:ygbC
Ordered Locus Names:b2744, JW2714
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
ProteomesiUP000000318: Chromosome, UP000000625: Chromosome

Organism-specific databases

EcoGeneiEG11817. surE.

Subcellular locationi

Cytoplasm Curated

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 2532535'/3'-nucleotidase SurEPRO_0000111809Add
BLAST

Proteomic databases

PaxDbiP0A840.
PRIDEiP0A840.

Expressioni

Gene expression databases

GenevestigatoriP0A840.

Interactioni

Subunit structurei

Monomer and homooligomer in solution. The oligomeric complex consists of at least four subunits.1 Publication

Protein-protein interaction databases

DIPiDIP-47982N.
IntActiP0A840. 3 interactions.
STRINGi511145.b2744.

Structurei

3D structure databases

ProteinModelPortaliP0A840.
SMRiP0A840. Positions 1-253.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the SurE nucleotidase family.Curated

Phylogenomic databases

eggNOGiCOG0496.
HOGENOMiHOG000122500.
InParanoidiP0A840.
KOiK03787.
OMAiDKDWVHL.
OrthoDBiEOG68WR45.
PhylomeDBiP0A840.

Family and domain databases

Gene3Di3.40.1210.10. 1 hit.
HAMAPiMF_00060. SurE.
InterProiIPR030048. SurE.
IPR002828. SurE-like_Pase/nucleotidase.
[Graphical view]
PfamiPF01975. SurE. 1 hit.
[Graphical view]
SUPFAMiSSF64167. SSF64167. 1 hit.
TIGRFAMsiTIGR00087. surE. 1 hit.

Sequencei

Sequence statusi: Complete.

P0A840-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MRILLSNDDG VHAPGIQTLA KALREFADVQ VVAPDRNRSG ASNSLTLESS
60 70 80 90 100
LRTFTFENGD IAVQMGTPTD CVYLGVNALM RPRPDIVVSG INAGPNLGDD
110 120 130 140 150
VIYSGTVAAA MEGRHLGFPA LAVSLDGHKH YDTAAAVTCS ILRALCKEPL
160 170 180 190 200
RTGRILNINV PDLPLDQIKG IRVTRCGTRH PADQVIPQQD PRGNTLYWIG
210 220 230 240 250
PPGGKCDAGP GTDFAAVDEG YVSITPLHVD LTAHSAQDVV SDWLNSVGVG

TQW
Length:253
Mass (Da):26,900
Last modified:June 7, 2005 - v1
Checksum:i33A7CD0AEE13C3DB
GO

Sequence cautioni

The sequence AAA69254.1 differs from that shown. Reason: Erroneous initiation. Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L07942 Genomic DNA. Translation: AAA79839.1.
U29579 Genomic DNA. Translation: AAA69254.1. Different initiation.
U00096 Genomic DNA. Translation: AAC75786.1.
AP009048 Genomic DNA. Translation: BAE76821.1.
PIRiI69732.
RefSeqiNP_417224.1. NC_000913.3.
YP_490953.1. NC_007779.1.

Genome annotation databases

EnsemblBacteriaiAAC75786; AAC75786; b2744.
BAE76821; BAE76821; BAE76821.
GeneIDi12933283.
947211.
KEGGiecj:Y75_p2682.
eco:b2744.
PATRICi32120894. VBIEscCol129921_2839.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L07942 Genomic DNA. Translation: AAA79839.1.
U29579 Genomic DNA. Translation: AAA69254.1. Different initiation.
U00096 Genomic DNA. Translation: AAC75786.1.
AP009048 Genomic DNA. Translation: BAE76821.1.
PIRiI69732.
RefSeqiNP_417224.1. NC_000913.3.
YP_490953.1. NC_007779.1.

3D structure databases

ProteinModelPortaliP0A840.
SMRiP0A840. Positions 1-253.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

DIPiDIP-47982N.
IntActiP0A840. 3 interactions.
STRINGi511145.b2744.

Proteomic databases

PaxDbiP0A840.
PRIDEiP0A840.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC75786; AAC75786; b2744.
BAE76821; BAE76821; BAE76821.
GeneIDi12933283.
947211.
KEGGiecj:Y75_p2682.
eco:b2744.
PATRICi32120894. VBIEscCol129921_2839.

Organism-specific databases

EchoBASEiEB1764.
EcoGeneiEG11817. surE.

Phylogenomic databases

eggNOGiCOG0496.
HOGENOMiHOG000122500.
InParanoidiP0A840.
KOiK03787.
OMAiDKDWVHL.
OrthoDBiEOG68WR45.
PhylomeDBiP0A840.

Enzyme and pathway databases

BioCyciEcoCyc:EG11817-MONOMER.
ECOL316407:JW2714-MONOMER.
MetaCyc:EG11817-MONOMER.
BRENDAi3.1.3.5. 2026.
SABIO-RKP0A840.

Miscellaneous databases

PROiP0A840.

Gene expression databases

GenevestigatoriP0A840.

Family and domain databases

Gene3Di3.40.1210.10. 1 hit.
HAMAPiMF_00060. SurE.
InterProiIPR030048. SurE.
IPR002828. SurE-like_Pase/nucleotidase.
[Graphical view]
PfamiPF01975. SurE. 1 hit.
[Graphical view]
SUPFAMiSSF64167. SSF64167. 1 hit.
TIGRFAMsiTIGR00087. surE. 1 hit.
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "A new gene involved in stationary-phase survival located at 59 minutes on the Escherichia coli chromosome."
    Li C., Ichikawa J.K., Ravetto J.J., Kuo H.-C., Fu J.C., Clarke S.
    J. Bacteriol. 176:6015-6022(1994) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: MP180.
  2. Ichikawa J.K.
    Submitted (OCT-1995) to the EMBL/GenBank/DDBJ databases
    Cited for: SEQUENCE REVISION.
  3. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: K12 / MG1655 / ATCC 47076.
  4. "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110."
    Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S., Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T.
    Mol. Syst. Biol. 2:E1-E5(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: K12 / W3110 / ATCC 27325 / DSM 5911.
  5. "General enzymatic screens identify three new nucleotidases in Escherichia coli. Biochemical characterization of SurE, YfbR, and YjjG."
    Proudfoot M., Kuznetsova E., Brown G., Rao N.N., Kitagawa M., Mori H., Savchenko A., Yakunin A.F.
    J. Biol. Chem. 279:54687-54694(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION, CHARACTERIZATION, COFACTOR, SUBUNIT, BIOPHYSICOCHEMICAL PROPERTIES.

Entry informationi

Entry nameiSURE_ECOLI
AccessioniPrimary (citable) accession number: P0A840
Secondary accession number(s): P36664, Q2MA85
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 7, 2005
Last sequence update: June 7, 2005
Last modified: January 7, 2015
This is version 79 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Caution

Was originally annotated as an acid phosphatase (EC 3.1.3.2).Curated

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

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

External Data

Dasty 3

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 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.