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Protein

Elongation factor Tu 1

Gene

tufA

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

Functioni

This protein promotes the GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis.
May play an important regulatory role in cell growth and in the bacterial response to nutrient deprivation.
In case of infection by bacteriophage Qbeta, part of the viral RNA-dependent RNA polymerase complex. With EF-Ts may provide a stabilizing scaffold for the beta (catalytic) subunit. Helps separate the double-stranded RNA of the template and growing RNA during elongation. With the beta subunit helps form the exit tunnel for template RNA.Curated1 Publication
Plays a stimulatory role in trans-translation; binds tmRNA.1 Publication

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi19 – 268GTP
Nucleotide bindingi81 – 855GTP
Nucleotide bindingi136 – 1394GTP

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Elongation factor

Keywords - Biological processi

Antibiotic resistance, Protein biosynthesis

Keywords - Ligandi

GTP-binding, Nucleotide-binding, RNA-binding

Enzyme and pathway databases

BioCyciEcoCyc:EG11036-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Elongation factor Tu 1UniRule annotation
Short name:
EF-Tu 1UniRule annotation
Alternative name(s):
Bacteriophage Q beta RNA-directed RNA polymerase subunit III1 Publication
P-43
Gene namesi
Name:tufAUniRule annotation
Ordered Locus Names:b3339, JW3301
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG11036. tufA.

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: UniProtKB
  • plasma membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Cytoplasm, Membrane

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Mutagenesisi20 – 201H → A: No change in binding GDP and 3-fold reduction in binding EF-Ts. 1 Publication
Mutagenesisi21 – 211V → G: Lowers GTPase activity 5 to 10-fold. 1 Publication
Mutagenesisi83 – 831P → T: Loss of GTPase activity and creation of an autophosphorylation site. 1 Publication
Mutagenesisi115 – 1151Q → A: Weaker binding for GDP and for EF-Ts. 1 Publication
Mutagenesisi125 – 1251Q → K: Kirromycin resistant. 1 Publication
Mutagenesisi137 – 1371K → R, Q, E or I: Reduces affinity for GDP. 1 Publication
Mutagenesisi139 – 1391D → N: Reduces affinity for GDP; increases affinity for XDP. 1 Publication
Mutagenesisi223 – 2231G → D: Inhibits codon-induced conformational changes leading to GTPase activation on the ribosome. 1 Publication
Mutagenesisi231 – 2311R → C: Pulvomycin resistant. 1 Publication
Mutagenesisi317 – 3171G → D: Kirromycin resistant. 1 Publication
Mutagenesisi334 – 3341R → C: Pulvomycin resistant. 1 Publication
Mutagenesisi335 – 3351T → A: Pulvomycin resistant. 1 Publication
Mutagenesisi349 – 3491E → A: No change in binding GDP but higher binding constant for EF-Ts. 1 Publication
Mutagenesisi376 – 3761A → T or V: Kirromycin resistant. 1 Publication
Mutagenesisi383 – 3831T → V: No longer phosphorylated by phage protein doc, has no effect on translation. 1 Publication

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methionineiRemoved2 Publications
Chaini2 – 394393Elongation factor Tu 1PRO_0000091320Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei2 – 21N-acetylserine2 Publications
Modified residuei57 – 571N6,N6-dimethyllysine; alternate4 Publications
Modified residuei57 – 571N6-methyllysine; alternate4 Publications
Modified residuei314 – 3141N6-acetyllysine1 Publication
Modified residuei383 – 3831Phosphothreonine3 Publications

Post-translational modificationi

The N-terminus is blocked.
Methylated in vivo on Lys-57 in response to nutrient starvation.4 Publications
Phosphorylated in vitro by phage protein doc on Thr-383.3 Publications
Phosphorylated in vitro by HipA on Thr-383 (PubMed:19150849), this has since been reported not to occur in vivo (PubMed:24095282).4 Publications

Keywords - PTMi

Acetylation, Methylation, Phosphoprotein

Proteomic databases

EPDiP0CE47.
PaxDbiP0CE47.
PRIDEiP0CE47.

PTM databases

iPTMnetiP0CE47.

Interactioni

Subunit structurei

Monomer. In case of infection by bacteriophage Qbeta, part of the viral RNA-dependent RNA polymerase complex, the other subunits are the viral replicase catalytic subunit (AC P14647), host ribosomal protein S1 and EF-Ts (PubMed:816798).UniRule annotationCurated4 Publications

Binary interactionsi

WithEntry#Exp.IntActNotes
helDP150382EBI-301077,EBI-551473
hslOP0A6Y52EBI-301077,EBI-562857
lpxBP104412EBI-301077,EBI-553692
queCP777562EBI-301077,EBI-560024
tsfP0A6P17EBI-301077,EBI-301164
ybeDP0A8J42EBI-301077,EBI-370708
yheSP633892EBI-301077,EBI-561198

Protein-protein interaction databases

BioGridi852150. 1 interaction.
DIPiDIP-6159N.
IntActiP0CE47. 156 interactions.
STRINGi511145.b3339.

Structurei

Secondary structure

1
394
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Turni7 – 93Combined sources
Beta strandi12 – 198Combined sources
Beta strandi20 – 245Combined sources
Helixi25 – 4016Combined sources
Helixi47 – 515Combined sources
Beta strandi55 – 584Combined sources
Beta strandi61 – 644Combined sources
Beta strandi68 – 714Combined sources
Beta strandi76 – 816Combined sources
Helixi85 – 9410Combined sources
Beta strandi95 – 973Combined sources
Beta strandi100 – 1078Combined sources
Turni108 – 1103Combined sources
Helixi116 – 12510Combined sources
Beta strandi131 – 1366Combined sources
Helixi138 – 1403Combined sources
Helixi144 – 16017Combined sources
Turni165 – 1673Combined sources
Beta strandi170 – 1723Combined sources
Helixi175 – 1795Combined sources
Helixi183 – 19917Combined sources
Helixi206 – 2083Combined sources
Beta strandi212 – 2143Combined sources
Beta strandi217 – 2215Combined sources
Turni222 – 2243Combined sources
Beta strandi225 – 2317Combined sources
Beta strandi234 – 2385Combined sources
Beta strandi242 – 2498Combined sources
Beta strandi252 – 26110Combined sources
Beta strandi264 – 2707Combined sources
Beta strandi274 – 2818Combined sources
Helixi284 – 2863Combined sources
Beta strandi292 – 2943Combined sources
Turni296 – 2983Combined sources
Beta strandi301 – 31111Combined sources
Turni314 – 3174Combined sources
Beta strandi323 – 3275Combined sources
Beta strandi330 – 3334Combined sources
Beta strandi336 – 3438Combined sources
Beta strandi356 – 36813Combined sources
Beta strandi374 – 3796Combined sources
Beta strandi382 – 39413Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1D8TX-ray2.35A/B2-394[»]
1EFCX-ray2.05A/B2-393[»]
1ETUX-ray2.90A2-394[»]
1MJ1electron microscopy13.00A8-389[»]
2FX3X-ray3.40A2-394[»]
2HCJX-ray2.12A9-45[»]
B60-394[»]
2HDNX-ray2.80A/C/E/G/I/K9-45[»]
B/D/F/H/J/L60-394[»]
3EP2electron microscopy-X2-393[»]
3EQ3electron microscopy-X2-393[»]
3EQ4electron microscopy-X2-393[»]
3U2QX-ray2.70A3-394[»]
3U6BX-ray2.12A/B3-394[»]
3U6KX-ray2.45A/B3-394[»]
4G5GX-ray2.30A3-394[»]
4PC3X-ray1.83A/B1-394[»]
4PC7X-ray3.60A1-394[»]
4Q7JX-ray2.90B/F2-394[»]
4V69electron microscopy6.70AZ2-393[»]
ProteinModelPortaliP0CE47.
SMRiP0CE47. Positions 9-393.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP0CE47.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini10 – 204195tr-type GAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni19 – 268G1By similarity
Regioni60 – 645G2By similarity
Regioni81 – 844G3By similarity
Regioni136 – 1394G4By similarity
Regioni174 – 1763G5By similarity

Sequence similaritiesi

Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. EF-Tu/EF-1A subfamily.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CGV. Bacteria.
COG0050. LUCA.
InParanoidiP0CE47.
KOiK02358.
PhylomeDBiP0CE47.

Family and domain databases

CDDicd03697. EFTU_II. 1 hit.
Gene3Di3.40.50.300. 1 hit.
HAMAPiMF_00118_B. EF_Tu_B. 1 hit.
InterProiIPR004161. EFTu-like_2.
IPR033720. EFTU_2.
IPR031157. G_TR_CS.
IPR027417. P-loop_NTPase.
IPR005225. Small_GTP-bd_dom.
IPR000795. TF_GTP-bd_dom.
IPR009000. Transl_B-barrel.
IPR009001. Transl_elong_EF1A/Init_IF2_C.
IPR004541. Transl_elong_EFTu/EF1A_bac/org.
IPR004160. Transl_elong_EFTu/EF1A_C.
[Graphical view]
PfamiPF03144. GTP_EFTU_D2. 1 hit.
PF03143. GTP_EFTU_D3. 1 hit.
[Graphical view]
PRINTSiPR00315. ELONGATNFCT.
SUPFAMiSSF50447. SSF50447. 1 hit.
SSF50465. SSF50465. 1 hit.
SSF52540. SSF52540. 1 hit.
TIGRFAMsiTIGR00485. EF-Tu. 1 hit.
TIGR00231. small_GTP. 1 hit.
PROSITEiPS00301. G_TR_1. 1 hit.
PS51722. G_TR_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P0CE47-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSKEKFERTK PHVNVGTIGH VDHGKTTLTA AITTVLAKTY GGAARAFDQI
60 70 80 90 100
DNAPEEKARG ITINTSHVEY DTPTRHYAHV DCPGHADYVK NMITGAAQMD
110 120 130 140 150
GAILVVAATD GPMPQTREHI LLGRQVGVPY IIVFLNKCDM VDDEELLELV
160 170 180 190 200
EMEVRELLSQ YDFPGDDTPI VRGSALKALE GDAEWEAKIL ELAGFLDSYI
210 220 230 240 250
PEPERAIDKP FLLPIEDVFS ISGRGTVVTG RVERGIIKVG EEVEIVGIKE
260 270 280 290 300
TQKSTCTGVE MFRKLLDEGR AGENVGVLLR GIKREEIERG QVLAKPGTIK
310 320 330 340 350
PHTKFESEVY ILSKDEGGRH TPFFKGYRPQ FYFRTTDVTG TIELPEGVEM
360 370 380 390
VMPGDNIKMV VTLIHPIAMD DGLRFAIREG GRTVGAGVVA KVLG
Length:394
Mass (Da):43,284
Last modified:March 23, 2010 - v1
Checksum:i731A60255F43358F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J01690 Genomic DNA. Translation: AAA50993.1.
M10459 Genomic DNA. Translation: AAA24702.1.
U00096 Genomic DNA. Translation: AAC76364.1.
AP009048 Genomic DNA. Translation: BAE77952.1.
U18997 Genomic DNA. Translation: AAA58136.1.
AF058450 Genomic DNA. Translation: AAC14286.1.
PIRiA91475. EFECTA.
RefSeqiNP_417798.1. NC_000913.3.
WP_000031783.1. NZ_LN832404.1.

Genome annotation databases

EnsemblBacteriaiAAC76364; AAC76364; b3339.
BAE77952; BAE77952; BAE77952.
GeneIDi947838.
KEGGiecj:JW3301.
eco:b3339.
PATRICi32122110. VBIEscCol129921_3432.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J01690 Genomic DNA. Translation: AAA50993.1.
M10459 Genomic DNA. Translation: AAA24702.1.
U00096 Genomic DNA. Translation: AAC76364.1.
AP009048 Genomic DNA. Translation: BAE77952.1.
U18997 Genomic DNA. Translation: AAA58136.1.
AF058450 Genomic DNA. Translation: AAC14286.1.
PIRiA91475. EFECTA.
RefSeqiNP_417798.1. NC_000913.3.
WP_000031783.1. NZ_LN832404.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1D8TX-ray2.35A/B2-394[»]
1EFCX-ray2.05A/B2-393[»]
1ETUX-ray2.90A2-394[»]
1MJ1electron microscopy13.00A8-389[»]
2FX3X-ray3.40A2-394[»]
2HCJX-ray2.12A9-45[»]
B60-394[»]
2HDNX-ray2.80A/C/E/G/I/K9-45[»]
B/D/F/H/J/L60-394[»]
3EP2electron microscopy-X2-393[»]
3EQ3electron microscopy-X2-393[»]
3EQ4electron microscopy-X2-393[»]
3U2QX-ray2.70A3-394[»]
3U6BX-ray2.12A/B3-394[»]
3U6KX-ray2.45A/B3-394[»]
4G5GX-ray2.30A3-394[»]
4PC3X-ray1.83A/B1-394[»]
4PC7X-ray3.60A1-394[»]
4Q7JX-ray2.90B/F2-394[»]
4V69electron microscopy6.70AZ2-393[»]
ProteinModelPortaliP0CE47.
SMRiP0CE47. Positions 9-393.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi852150. 1 interaction.
DIPiDIP-6159N.
IntActiP0CE47. 156 interactions.
STRINGi511145.b3339.

PTM databases

iPTMnetiP0CE47.

Proteomic databases

EPDiP0CE47.
PaxDbiP0CE47.
PRIDEiP0CE47.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC76364; AAC76364; b3339.
BAE77952; BAE77952; BAE77952.
GeneIDi947838.
KEGGiecj:JW3301.
eco:b3339.
PATRICi32122110. VBIEscCol129921_3432.

Organism-specific databases

EchoBASEiEB1029.
EcoGeneiEG11036. tufA.

Phylogenomic databases

eggNOGiENOG4105CGV. Bacteria.
COG0050. LUCA.
InParanoidiP0CE47.
KOiK02358.
PhylomeDBiP0CE47.

Enzyme and pathway databases

BioCyciEcoCyc:EG11036-MONOMER.

Miscellaneous databases

EvolutionaryTraceiP0CE47.
PROiP0CE47.

Family and domain databases

CDDicd03697. EFTU_II. 1 hit.
Gene3Di3.40.50.300. 1 hit.
HAMAPiMF_00118_B. EF_Tu_B. 1 hit.
InterProiIPR004161. EFTu-like_2.
IPR033720. EFTU_2.
IPR031157. G_TR_CS.
IPR027417. P-loop_NTPase.
IPR005225. Small_GTP-bd_dom.
IPR000795. TF_GTP-bd_dom.
IPR009000. Transl_B-barrel.
IPR009001. Transl_elong_EF1A/Init_IF2_C.
IPR004541. Transl_elong_EFTu/EF1A_bac/org.
IPR004160. Transl_elong_EFTu/EF1A_C.
[Graphical view]
PfamiPF03144. GTP_EFTU_D2. 1 hit.
PF03143. GTP_EFTU_D3. 1 hit.
[Graphical view]
PRINTSiPR00315. ELONGATNFCT.
SUPFAMiSSF50447. SSF50447. 1 hit.
SSF50465. SSF50465. 1 hit.
SSF52540. SSF52540. 1 hit.
TIGRFAMsiTIGR00485. EF-Tu. 1 hit.
TIGR00231. small_GTP. 1 hit.
PROSITEiPS00301. G_TR_1. 1 hit.
PS51722. G_TR_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiEFTU1_ECOLI
AccessioniPrimary (citable) accession number: P0CE47
Secondary accession number(s): O68929
, P02990, P0A6N1, Q2M704, Q2M8R6, Q8X4S9, Q8XED3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 23, 2010
Last sequence update: March 23, 2010
Last modified: September 7, 2016
This is version 57 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Miscellaneous

Present with about 70,000 molecules/cell.1 Publication
This chain is also used in bacteriophage Q-beta RNA polymerase.
The antibiotic kirromycin inhibits protein biosynthesis by inhibiting the release of EF-Tu from the ribosome.1 Publication
The antibiotic pulvomycin inhibits protein biosynthesis by disrupting the allosteric control mechanism of EF-Tu.1 Publication

Caution

EF-Tu 1 and EF-Tu 2 differ in a single position and are no longer merged. However, many papers are found in both entries as it is not always possible to determine for each paper which of EF-Tu 1 or EF-Tu 2 was being worked upon.Curated

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, 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.