| UniProtKB AC (Name) | UniProtKB Section | Organism | Description | |
|---|---|---|---|---|
| P46144 (YEDJ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YedJ; | |
| P75936 (FLGD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Basal-body rod modification protein FlgD; | |
| P0AA43 (RSUA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Ribosomal small subunit pseudouridine synthase A; 16S pseudouridylate 516 synthase; 16S rRNA pseudouridine(516) synthase; rRNA pseudouridylate synthase A; rRNA-uridine isomerase A; | |
| P46852 (YHHW_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Quercetin 2,3-dioxygenase; Pirin-like protein YhhW; | |
| P37680 (SGBE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | L-ribulose-5-phosphate 4-epimerase SgbE; Phosphoribulose isomerase; | |
| P42914 (YRAI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Probable fimbrial chaperone YraI; | |
| P77433 (YKGG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YkgG; | |
| P77179 (RSXE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Ion-translocating oxidoreductase complex subunit E; Rsx electron transport complex subunit E; | |
| P19317 (NARW_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Probable nitrate reductase molybdenum cofactor assembly chaperone NarW; Redox enzyme maturation protein NarW; | |
| P77756 (QUEC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | 7-cyano-7-deazaguanine synthase; 7-cyano-7-carbaguanine synthase; PreQ(0) synthase; Queuosine biosynthesis protein QueC; | |
| P62556 (SOPA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein SopA; Plasmid partition protein A; | |
| P77389 (YDHP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane transport protein YdhP; | |
| Q46844 (YGHT_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized ATP-binding protein YghT; | |
| P06626 (TRAJ1_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein TraJ; | |
| P31471 (YIEL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YieL; | |
| P75728 (UBIF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | 3-demethoxyubiquinol 3-hydroxylase; 2-octaprenyl-3-methyl-6-methoxy-1,4-benzoquinol hydroxylase; | |
| P32109 (YIBJ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative uncharacterized protein YibJ; | |
| P0A836 (SUCC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Succinate--CoA ligase [ADP-forming] subunit beta; Succinyl-CoA synthetase subunit beta; | |
| P37748 (WZY_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative O-antigen polymerase; | |
| P76223 (YNJB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein YnjB; | |
| P33013 (DACD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | D-alanyl-D-alanine carboxypeptidase DacD; Penicillin-binding protein 6b; | |
| Q46889 (OTNK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | 3-oxo-tetronate kinase; 3-dehydrotetronate 4-kinase; | |
| P13738 (NHAA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Na(+)/H(+) antiporter NhaA; Na(+)/H(+) exchanger; Na(+)/Li(+)/H(+) antiporter; Sodium/proton antiporter NhaA; | |
| P0AF78 (YJFJ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YjfJ; | |
| P24180 (ACRE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Multidrug export protein AcrE; Acriflavine resistance protein E; Protein EnvC; | |
| P76373 (UDG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | UDP-glucose 6-dehydrogenase; | |
| P52599 (EMRK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Probable multidrug resistance protein EmrK; | |
| P37005 (LAST_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized tRNA/rRNA methyltransferase LasT; | |
| P0CG19 (RNPH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Truncated inactive ribonuclease PH; Inactive RNase PH; Truncated RNase PH; | |
| P52094 (HISQ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Histidine/lysine/arginine/ornithine transport system permease protein HisQ; | |
| P39306 (ULAF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | L-ribulose-5-phosphate 4-epimerase UlaF; L-ascorbate utilization protein F; Phosphoribulose isomerase; | |
| Q9S4X2 (YUBD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative methylase YubD; Type II methyltransferase M.EcoCR63FORFAP; | |
| P0ACM2 (RSPR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | HTH-type transcriptional repressor RspR; | |
| P31068 (FLIH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Flagellar assembly protein FliH; | |
| P24218 (INTD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Prophage integrase IntD; Prophage DLP12 integrase; Prophage QSR' integrase; | |
| P08203 (ARAD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | L-ribulose-5-phosphate 4-epimerase AraD; Phosphoribulose isomerase; | |
| P32719 (ALSE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | D-allulose-6-phosphate 3-epimerase; | |
| P0A6E9 (BIOD2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | ATP-dependent dethiobiotin synthetase BioD 2; DTB synthetase 2; Dethiobiotin synthase 2; | |
| P18196 (MINC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Septum site-determining protein MinC; | |
| P39163 (CHAC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Glutathione-specific gamma-glutamylcyclotransferase; Cation transport regulatory protein ChaC; | |
| P0AD19 (YOHK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane protein YohK; | |
| P60844 (AQPZ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Aquaporin Z; Bacterial nodulin-like intrinsic protein; Water channel AqpZ; | |
| P0AAL3 (NAPG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Ferredoxin-type protein NapG; Ubiquinol--[NapC cytochrome c] reductase NapG subunit; | |
| P32681 (YJAH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YjaH; | |
| P76256 (TSAB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | tRNA threonylcarbamoyladenosine biosynthesis protein TsaB; t(6)A37 threonylcarbamoyladenosine biosynthesis protein TsaB; | |
| P31462 (MDTL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Multidrug resistance protein MdtL; | |
| P0AEJ2 (ENTC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Isochorismate synthase EntC; Isochorismate mutase; | |
| P76103 (YDCO_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane protein YdcO; | |
| P00946 (MANA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Mannose-6-phosphate isomerase; Phosphohexomutase; Phosphomannose isomerase; | |
| P37663 (YHJY_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YhjY; |
Escherichia coli is a Gram negative gammaproteobacterium commonly found in the lower intestine of warm-blooded organisms (endotherms). Most E. coli strains are harmless and are part of the normal flora of the gut.
Since E. coli can survive outside the body for a limited amount of time, it is an indicator organism for fecal contamination of the environment. The descendants of two isolates, K-12 and B strain, are used routinely in molecular biology as both a tool and a model organism. It is the most widely studied prokaryotic model organism due to its ease of culturing and short generation time.
The first E. coli genome was sequenced in 1997 (K12 strain).
From left to right: i) The number of proteins in the reference proteome of Escherichia coli, ii) the number of unique protein sequences for which at least one model is available, iii) the total number of models and iv) a coverage bar plot is shown.
The bar plot shows the coverage for every protein in the reference proteome of Escherichia coli for which there is at least one model. Different colours (dark green to red boxes) represent the coverage of the targets. Targets with high coverage are represented in dark green (more than 80% of the target's length is covered by models), whereas low coverage is shown in red. The size of each box is proportional to the number of target sequences with a given coverage.
For information on the latest proteome for Escherichia coli, please visit UniProtKB.
You can easily download the latest protein sequences for Escherichia coli proteome here. Please note this download is for the current UniProtKB release, which may be different to release 2026_01 that was used for the most up to date SWISS-MODEL Repository.
| Proteins in proteome | Sequences modelled | Models |
| 4,403 | 3,758 | 6,310 |
Detailed coverage numbers are obtained by hovering the mouse over one of the boxes.
The plot shows the evolution over years (x-axis) of the fraction of Escherichia coli reference proteome residues (y-axis) for which structural information is available. Different colors (light blue to dark blue) in the plot represent the quality of the sequence alignment between the reference proteome sequences (targets) and the sequences of the proteins in the structure database (templates). Alignments with low sequence identity are displayed in light blue, whereas alignments with high sequence identity are depicted in dark blue. The SWISS-MODEL Template Library is used as database of templates. Only target-template alignments found by HHblits and only residues with atom coordinates are considered.
This chart shows the percentage of residues in the Escherichia coli proteome which are covered by experimental structures and the enhancement of coverage by homology modelling by the SWISS-MODEL pipeline. Experimental residue coverage is determined using SIFTS mapping. For residues which are not covered by experimental structures (including where there are no atom records in SIFTS mapping) the model coverage bars are coloured by QMEANDisCo local quality score.
Many proteins form oligomeric structures either by self-assembly (homo-oligomeric) or by assembly with other proteins (hetero-oligomeric) to accomplish their function. In SWISS-MODEL Repository, the quaternary structure annotation of the template is used to model the target sequence in its oligomeric form. Currently our method is limited to the modelling of homo-oligomeric assemblies. The oligomeric state of the template is only considered if the interface is conserved.
| Single Chain | 2-mer | 3-mer | 4-mer | 5-mer | 6-mer | 7-mer | 8-mer | 9-mer | 10-mer | 11-mer | 12-mer | 14-mer | 15-mer | 16-mer | 20-mer | 22-mer | 24-mer | 25-mer | 26-mer | 30-mer | 34-mer | 40-mer | 44-mer | 48-mer | 60-mer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3,734 | 1,658 | 130 | 485 | 19 | 144 | 9 | 57 | 4 | 19 | 2 | 16 | 6 | 1 | 1 | 2 | 1 | 11 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 |
